diff --git a/app/helpers/dmsf_queries_helper.rb b/app/helpers/dmsf_queries_helper.rb
index 54602ef9..a5e72126 100644
--- a/app/helpers/dmsf_queries_helper.rb
+++ b/app/helpers/dmsf_queries_helper.rb
@@ -189,14 +189,13 @@ module DmsfQueriesHelper
   end
 
   def filter_any?
-    # :v - standard filters
-    # :op - custom fields filters
-    [:v, :op].each do |p|
-      if params[p]
-        params[p].each do |filter|
-          return true if (filter.size > 1) && filter[1].all?{ |v| v.present? }
-        end
+    # :v - value, :op - operator
+    size = params[:op]&.keys&.size
+    if size
+      if (size == 1) && params[:op].has_key?('title') && params[:op]['title'] == '~' && params[:v]['title'].join.empty?
+        return false
       end
+      return true
     end
     false
   end
diff --git a/app/models/dmsf_query.rb b/app/models/dmsf_query.rb
index 336c27bc..f5927be4 100644
--- a/app/models/dmsf_query.rb
+++ b/app/models/dmsf_query.rb
@@ -112,7 +112,7 @@ class DmsfQuery < Query
       filters_clauses = []
       filters.each_key do |field|
         v = values_for(field).clone
-        next unless v and !v.empty?
+        next unless v && !v.empty?
         operator = operator_for(field)
         case field
         when 'author'
@@ -120,7 +120,7 @@ class DmsfQuery < Query
             v.push User.current.id.to_s
           end
         when 'title'
-          next if v.include?('')
+          next if (operator == '~') && v.join.empty?
         end
         filters_clauses << '(' + sql_for_field(field, operator, v, queried_table_name, field) + ')'
       end