At the moment it is not nearly as good as google or other search engines. At they admitting themselves
We are aware that the quality of the search results is low.
Wikia’s search engine concept is that of trusted user feedback from a community of users acting together in an open, transparent, public way. Of course, before we start, we have no user feedback data. So the results are pretty bad. But we expect them to improve rapidly in coming weeks, so please bookmark the site and return often.
But it is good to have other search engines to break the power of the almighty google.