Help with FB API limits

I need some guidance on how to hit FB more efficiently so as to obtain the most relevant data that I need and without hitting the 600/600 limits. My backend calls /search with 1 of 3k keywords during a rand(8, 40) sleep and using time offsets (yes it does work). When I get a hit I parse and store. My problem is that I believe I am missing some objects. I need to make sure /search crosses as much FB data as publicly possible. If you are bored and bidding on random things, you could help me by typing in the string burger king or microsoft so my daemon can have something to play with. Otherwise, ignore those two key phrases and I will ignore you too. Thanks for your bid!