diff --git a/boards/views/search.py b/boards/views/search.py
--- a/boards/views/search.py
+++ b/boards/views/search.py
@@ -33,8 +33,9 @@ class BoardSearchView(View):
         if form.is_valid():
             query = form.cleaned_data[FORM_QUERY]
             if len(query) >= MIN_QUERY_LENGTH:
-                results = Post.objects.filter(Q(text__icontains=query) |
-                        Q(title__icontains=query)).order_by('-id')
+                results = Post.objects.filter(Q(text__icontains=query)
+                        | Q(title__icontains=query) | Q(opening=True,
+                            thread__tags__aliases__name__icontains=query)).order_by('-id').distinct()
                 paginator = get_paginator(results, RESULTS_PER_PAGE)
 
                 page = int(request.GET.get(REQUEST_PAGE, '1'))