Windows XP classic search functionality in Windows 7?

You can use the Advanced Query Syntax, which is probably more powerful, yet also more complicated. They don't make it very easy to figure out how their search works either.

name: tells it to only search through the name property of the file and not date, type, folder, file contents...

The tilde ~ tells it to allow dos wild cards (* and ?) where the asterisk is any number of any character and the question mark is a place holder for just one character.

name:~"*long*"

The charts at the bottom of this page are helpful.