What is your favorite search terms?

Hello BH'ers,
I am trying to understand what everyone else here uses as far as terms and searchability to get some nice gems.
I like to use
METHOD
STRATEGY
OFFLINE

I used to be able to use GET but its too short of a word.

Any other terms?

Anything with the words "cheap", "where to buy" or "download" makes me good money. But i only specialize in eCommerce and CPA.