At most sites, when you add more words to the search query, it narrows down your results. Here it's the complete opposite, the more words you add to your search, the more options come up. It brings up everything with any of those words in it.
For example: If I type in "Final Fantasy", instead of it just bringing up Final Fantasy titles, it's also gonna bring up Final Fight, Final Flash, Fantasy Zone, etc. etc. (And at the same time, if I just typed in "Fantasy" or "Final", it's gonna bring up way too many results.)
This seems bass ackwards to me.