It's pretty cool, by default, the search engine looks for all words in any order. To search for an exact phrase, enclose the phrase in quotes:
"seth gunderson totally rules"
The search engine is really smart and also supports AND, OR, and NOT keywords to specify boolean expressions (I left "boolean" there just to sound smarter):
kick-ass OR super-cool
handsome NOT smelly
If you are still having trouble finding something, just let me know and I'll track it down for you.