"Check If Already Posted" not very effective.

Sorry if this sounds like a lame complaint, but every time I have used "Check If Already Posted" when creating new threads, including very broad ones, I never got any search results.

Typing only "Jailbreak" into the new thread title and checking if already posted... gives zero results. Typing in "MacBook" only gives 9 results. "Mac Pro" only gives 1. These are the only words I wrote in the title, and I think when 2-3 words are included, no results are ever given. Thoughts?

Perhaps not remove it, but maybe make Google as the search engine that is used? I am pretty sure that would make it a lot better.