diff --git a/judge/views/blog.py b/judge/views/blog.py
index 42cecb7..2398703 100644
--- a/judge/views/blog.py
+++ b/judge/views/blog.py
@@ -200,22 +200,20 @@ class PostView(TitleMixin, CommentedDetailView):
     def get_context_data(self, **kwargs):
         context = super(PostView, self).get_context_data(**kwargs)
         context["og_image"] = self.object.og_image
-        context["valid_user"] = False
-        context["valid_org"] = []
-        for author in self.object.authors.all():
-            if self.request.profile.user == author.user:
-                context["valid_user"] = True
+        context["valid_user_to_show_edit"] = False
+        context["valid_org_to_show_edit"] = []
+        
+        if self.request.profile in self.object.authors.all():
+            context["valid_user_to_show_edit"] = True
 
-        for valid_org in self.object.organizations.all():
-            for admin in valid_org.admins.all():
-                if self.request.profile.user == admin.user:
-                    context["valid_user"] = True
+        for valid_org_to_show_edit in self.object.organizations.all():
+            if self.request.profile in valid_org_to_show_edit.admins.all():
+                context["valid_user_to_show_edit"] = True
 
-        if context["valid_user"]:
+        if context["valid_user_to_show_edit"]:
             for post_org in self.object.organizations.all():
-                for org in self.request.profile.organizations.all():
-                    if post_org == org:
-                        context["valid_org"].append(org)
+                if post_org in self.request.profile.organizations.all():
+                    context["valid_org_to_show_edit"].append(post_org)
 
         return context
 
diff --git a/locale/vi/LC_MESSAGES/django.po b/locale/vi/LC_MESSAGES/django.po
index ac4da17..e89ac73 100644
--- a/locale/vi/LC_MESSAGES/django.po
+++ b/locale/vi/LC_MESSAGES/django.po
@@ -3361,6 +3361,10 @@ msgstr "đã đăng vào %(time)s"
 msgid "Edit"
 msgstr "Chỉnh sửa"
 
+#: templates/blog/blog.html:33
+msgid "Edit in"
+msgstr "Chỉnh sửa trong"
+
 #: templates/blog/dashboard.html:21
 #, python-format
 msgid ""
diff --git a/locale/vi/LC_MESSAGES/dmoj-user.po b/locale/vi/LC_MESSAGES/dmoj-user.po
index 31bcd80..3e14530 100644
--- a/locale/vi/LC_MESSAGES/dmoj-user.po
+++ b/locale/vi/LC_MESSAGES/dmoj-user.po
@@ -15,6 +15,9 @@ msgstr "Thành viên"
 msgid "Contests"
 msgstr "Kỳ thi"
 
+msgid "Chat"
+msgstr ""
+
 msgid "Groups"
 msgstr "Nhóm"
 
@@ -24,563 +27,20 @@ msgstr "Giới thiệu"
 msgid "Status"
 msgstr "Máy chấm"
 
-msgid "Suggestions"
-msgstr "Đề xuất ý tưởng"
-
-msgid "Proposal"
-msgstr "Đề xuất bài tập"
-
-msgid "TanKhoa"
-msgstr "Tân Khoa"
-
-msgid "Name"
-msgstr "Đăng ký tên"
-
-msgid "Report"
-msgstr "Báo cáo"
-
-msgid "2sat"
-msgstr ""
-
-msgid "adhoc"
-msgstr ""
-
-msgid "aho-corasick"
-msgstr ""
-
-msgid "articulation-point"
-msgstr ""
-
-msgid "backtrack"
-msgstr ""
-
-msgid "bellman-ford"
-msgstr ""
-
-msgid "bfs-01"
-msgstr ""
-
-msgid "biconnected-component"
-msgstr ""
-
-msgid "bignum"
-msgstr ""
-
-msgid "binary-lifting"
-msgstr ""
-
-msgid "binary-search"
-msgstr ""
-
-msgid "binary-search-parallel"
-msgstr ""
-
-msgid "bit"
-msgstr ""
-
-msgid "bit2d"
-msgstr ""
-
-msgid "bitset"
-msgstr ""
-
-msgid "bitwise"
-msgstr ""
-
-msgid "block-cut-tree"
-msgstr ""
-
-msgid "boruvka"
-msgstr ""
-
-msgid "branch&bound"
-msgstr ""
-
-msgid "bridge"
-msgstr ""
-
-msgid "brute force"
-msgstr ""
-
-msgid "cactus-graph"
-msgstr ""
-
-msgid "casework"
-msgstr ""
-
-msgid "centroid"
-msgstr ""
-
-msgid "chinese-remainder"
-msgstr ""
-
-msgid "combinatorics"
-msgstr ""
-
-msgid "constructive"
-msgstr ""
-
-msgid "convex-hull"
-msgstr ""
-
-msgid "counting"
-msgstr ""
-
-msgid "cycle"
-msgstr ""
-
-msgid "data structures"
-msgstr ""
-
-msgid "deep-optimization"
-msgstr ""
-
-msgid "dfs/bfs/pfs"
-msgstr ""
-
-msgid "dijkstra"
-msgstr ""
-
-msgid "divide and conquer"
-msgstr ""
-
-msgid "dp-alien"
-msgstr ""
-
-msgid "dp-bitmask"
-msgstr ""
-
-msgid "dp-cc"
-msgstr ""
-
-msgid "dp-convexhull"
-msgstr ""
-
-msgid "dp-count"
-msgstr ""
-
-msgid "dp-dag"
-msgstr ""
-
-msgid "dp-digit"
-msgstr ""
-
-msgid "dp-dnc"
-msgstr ""
-
-msgid "dp-general"
-msgstr ""
-
-msgid "dp-knuth"
-msgstr ""
-
-msgid "dp-matrix"
-msgstr ""
-
-msgid "dp-openclose"
-msgstr ""
-
-msgid "dp-permutation"
-msgstr ""
-
-msgid "dp-slope"
-msgstr ""
-
-msgid "dp-sos"
-msgstr ""
-
-msgid "dp-swap-label"
-msgstr ""
-
-msgid "dp-tree"
-msgstr ""
-
-msgid "dsu"
-msgstr ""
-
-msgid "dsu-roll-back"
-msgstr ""
-
-msgid "dynamic programming"
-msgstr ""
-
-msgid "euler-path"
-msgstr ""
-
-msgid "euler-theorem"
-msgstr ""
-
-msgid "euler-tour"
-msgstr ""
-
-msgid "extgcd"
-msgstr ""
-
-msgid "Fenwick Tree (Binary Indexed Tree)"
-msgstr ""
-
-msgid "fft/ntt"
-msgstr ""
-
-msgid "flow-demands"
-msgstr ""
-
-msgid "flow-general"
-msgstr ""
-
-msgid "flow-mincost"
-msgstr ""
-
-msgid "flows"
-msgstr ""
-
-msgid "floyd"
-msgstr ""
-
-msgid "function-graph"
-msgstr ""
-
-msgid "game theory"
-msgstr ""
-
-msgid "game-ad-hoc"
-msgstr ""
-
-msgid "game-minimax"
-msgstr ""
-
-msgid "game-nim"
-msgstr ""
-
-msgid "game-sprague-grundy"
-msgstr ""
-
-msgid "gauss-elim"
-msgstr ""
-
-msgid "genetic"
-msgstr ""
-
-msgid "geometry"
-msgstr ""
-
-msgid "geometry-general"
-msgstr ""
-
-msgid "gomory-hu-tree"
-msgstr ""
-
-msgid "graph"
-msgstr ""
-
-msgid "graph theory"
-msgstr ""
-
-msgid "greedy"
-msgstr ""
-
-msgid "greedy-exchange"
-msgstr ""
-
-msgid "greedy-general"
-msgstr ""
-
-msgid "greedy-moore"
-msgstr ""
-
-msgid "hashing"
-msgstr ""
-
-msgid "heuristic"
-msgstr ""
-
-msgid "hld"
-msgstr ""
-
-msgid "HSG"
-msgstr ""
-
-msgid "ICPC"
-msgstr ""
-
-msgid "implementation"
+msgid "Simple Math"
 msgstr ""
 
-msgid "inclusion-exclusion"
-msgstr ""
-
-msgid "interactive"
-msgstr ""
-
-msgid "inversive-geometry"
-msgstr ""
-
-msgid "kd-tree"
-msgstr ""
-
-msgid "kirchoff"
-msgstr ""
-
-msgid "kmp"
-msgstr ""
-
-msgid "kruskal"
-msgstr ""
-
-msgid "lagrange-inter"
-msgstr ""
-
-msgid "language"
-msgstr ""
-
-msgid "lca"
-msgstr ""
-
-msgid "lichao-tree"
-msgstr ""
-
-msgid "local-search"
-msgstr ""
+#~ msgid "Suggestions"
+#~ msgstr "Đề xuất ý tưởng"
 
-msgid "ltt"
-msgstr ""
-
-msgid "manacher"
-msgstr ""
-
-msgid "matching-bipartie"
-msgstr ""
-
-msgid "matching-general"
-msgstr ""
-
-msgid "matching-hall"
-msgstr ""
+#~ msgid "Proposal"
+#~ msgstr "Đề xuất bài tập"
 
-msgid "matching-hungarian"
-msgstr ""
-
-msgid "matching-konig"
-msgstr ""
+#~ msgid "TanKhoa"
+#~ msgstr "Tân Khoa"
 
-msgid "math"
-msgstr ""
-
-msgid "math-general"
-msgstr ""
-
-msgid "matrix multiplication"
-msgstr ""
-
-msgid "max-clique"
-msgstr ""
-
-msgid "meet-in-the-middle"
-msgstr ""
-
-msgid "Miscellaneous"
-msgstr ""
+#~ msgid "Name"
+#~ msgstr "Đăng ký tên"
 
-msgid "mo-general"
-msgstr ""
-
-msgid "mo-tree"
-msgstr ""
-
-msgid "mo-update"
-msgstr ""
-
-msgid "mobius"
-msgstr ""
-
-msgid "modular"
-msgstr ""
-
-msgid "modular-inverse"
-msgstr ""
-
-msgid "monotonic-queue"
-msgstr ""
-
-msgid "multiplicative"
-msgstr ""
-
-msgid "NEW"
-msgstr ""
-
-msgid "number theory"
-msgstr ""
-
-msgid "offline"
-msgstr ""
-
-msgid "order-statistic"
-msgstr ""
-
-msgid "output-only"
-msgstr ""
-
-msgid "palin-tree"
-msgstr ""
-
-msgid "picks-theorem"
-msgstr ""
-
-msgid "planar-graph"
-msgstr ""
-
-msgid "polygon-triangulation"
-msgstr ""
-
-msgid "precision-issue"
-msgstr ""
-
-msgid "prefix-sum"
-msgstr ""
-
-msgid "primality-test"
-msgstr ""
-
-msgid "probability"
-msgstr ""
-
-msgid "randomized"
-msgstr ""
-
-msgid "Range Queries"
-msgstr ""
-
-msgid "recursion"
-msgstr ""
-
-msgid "rmq"
-msgstr ""
-
-msgid "rmq-2d"
-msgstr ""
-
-msgid "rmq2d"
-msgstr ""
-
-msgid "scc"
-msgstr ""
-
-msgid "scheduling"
-msgstr ""
-
-msgid "search"
-msgstr ""
-
-msgid "segtree-2d"
-msgstr ""
-
-msgid "segtree-beats"
-msgstr ""
-
-msgid "segtree-dynamic"
-msgstr ""
-
-msgid "segtree-general"
-msgstr ""
-
-msgid "segtree-persistent"
-msgstr ""
-
-msgid "segtree-walk"
-msgstr ""
-
-msgid "sequence"
-msgstr ""
-
-msgid "sieve"
-msgstr ""
-
-msgid "sieve-segment"
-msgstr ""
-
-msgid "small-to-large"
-msgstr ""
-
-msgid "sortings"
-msgstr ""
-
-msgid "spanning-tree"
-msgstr ""
-
-msgid "sparse-table"
-msgstr ""
-
-msgid "spfa"
-msgstr ""
-
-msgid "sqrt"
-msgstr ""
-
-msgid "sqrt-babygiant"
-msgstr ""
-
-msgid "sqrt-buckets"
-msgstr ""
-
-msgid "sqrt-buffer"
-msgstr ""
-
-msgid "sqrt-time"
-msgstr ""
-
-msgid "stack-queue"
-msgstr ""
-
-msgid "static-data"
-msgstr ""
-
-msgid "stl"
-msgstr ""
-
-msgid "string"
-msgstr ""
-
-msgid "suffix-array"
-msgstr ""
-
-msgid "sweep-line"
-msgstr ""
-
-msgid "ternary-search"
-msgstr ""
-
-msgid "topo-sort"
-msgstr ""
-
-msgid "tortoise-hare"
-msgstr ""
-
-msgid "treap/splay"
-msgstr ""
-
-msgid "Tree - general"
-msgstr ""
-
-msgid "tree-isomorphism"
-msgstr ""
-
-msgid "trie"
-msgstr ""
-
-msgid "TSP"
-msgstr ""
-
-msgid "TST"
-msgstr ""
-
-msgid "two-pointers"
-msgstr ""
-
-msgid "VOI"
-msgstr ""
-
-msgid "voronoi"
-msgstr ""
-
-msgid "z-function"
-msgstr ""
+#~ msgid "Report"
+#~ msgstr "Báo cáo"
diff --git a/templates/blog/blog.html b/templates/blog/blog.html
index f526732..9cbfecb 100644
--- a/templates/blog/blog.html
+++ b/templates/blog/blog.html
@@ -28,8 +28,8 @@
             </span>
             {% if post.is_editable_by(request.user) %}
                 <span> [<a href="{{ url('admin:judge_blogpost_change', post.id) }}">{{ _('Edit') }}</a>]</span>            
-            {% elif valid_user %}
-                {% for org in valid_org %}
+            {% elif valid_user_to_show_edit %}
+                {% for org in valid_org_to_show_edit %}
                     <span> [<a href="{{ url('edit_organization_blog', org.id , org.slug , post.id) }}">{{ _('Edit in') }} {{org.slug}}</a>]</span>
                 {% endfor %}
             {% endif %}