Actually we are working on an Advanced Search. Hopefully that will help when you need to wade through an entire franchise of Mario games. Not sure when it will go live, but it is really turning into a necessity.
Also, remember when you type in a game that starts with "the", skip "the" and start with the 1st word after it. For alphabetical reasons we have all entries with "the" in it set up something like "Legend of Zelda, The"