I wanted to ask a question about filtering search results to truly unanswered questions, so I did a search for:
This got 4 hits on the "relevance" page, none of which was all that relevant, so I clicked over to the "Ask Question" page and entered this text:
"Mopping up" - query to limit questions to those with zero answers
The "related questions" list immediately popped up, with the first item being see only questions with zero answers?. Shouldn't that have been the first thing to appear on the "relevance" tab?