Swagbucks question...

I've been using it for 2 years now but I'm still confused about how to get swagbucks from searches. I used to get 3 a day. For the last few months, I've been having the hardest time getting even 2... I got some at 6.30am this morning, now it's almost 3pm and I've done 50 searches in a row, literally, and no luck.

Am I missing something?

Ok I waited until 3 and got some right away... I'm guessing it resets every 9 hours or something?

I think that it won't reward you if you just keep searching over and over right after another.