diff --git a/app/controllers/stores_controller.rb b/app/controllers/stores_controller.rb
index a68d12517..b1705c826 100644
--- a/app/controllers/stores_controller.rb
+++ b/app/controllers/stores_controller.rb
@@ -26,19 +26,19 @@ class StoresController < ApplicationController
     resultSet = Attachment.where("attachments.container_type IS NOT NULL AND filename LIKE :like ", like: "%#{keywords}%").
               reorder("created_on DESC")
     
-    # result = resultSet.to_a.dup
+    result = resultSet.to_a.dup
 
-    # resultSet.to_a.map { |res|
-    #   if(res.container.nil? || 
-    #     (res.container.class.to_s=="Project" && res.container.is_public == false) ||
-    #     (res.container.has_attribute?(:project) && res.container.project.is_public == false) ||
-    #     (res.container.class.to_s=="HomeworkAttach" && res.container.bid.reward_type == 3) ||
-    #     false
-    #     )
-    #     result.delete(res)
-    #   end
-    # }
-    # result
+    resultSet.to_a.map { |res|
+       if(res.container.nil? ||
+         (res.container.class.to_s=="Project" && res.container.is_public == false) ||
+         (res.container.has_attribute?(:project) && res.container.project.is_public == false) ||
+         (res.container.class.to_s=="HomeworkAttach" && res.container.bid.reward_type == 3) ||
+         false
+         ) || (res.container.is_a?(Course) && res.container.is_public == 0)
+         result.delete(res)
+       end
+    }
+    result
   end
 
   LIMIT = 12 unless const_defined?(:LIMIT)