DWQA: Search form does some issue

Hello,

Search form can’t find good result:

https://docs.google.com/file/d/0B7q-ingsr5hKcl93Qi1XV3h2Rm8/

https://docs.google.com/file/d/0B7q-ingsr5hKbHlkRVFlUXpzQWM

Please fix it. Its really important.

Thanks