It just takes a lot of drum programming. One trick is to mix up different breaks that have been cut up.
One trick that works is to cut your break up into 8ths and just rearrange the 8ths, working up variations that way. Just repeating the same 8th note can give you weird results. It's sort of a "meta" way of working with breaks, a little more meta than arranging the individual hits.
But it takes a lot of patience to break up your breaks into individual hits, and do a lot of rearranging. It's not going to happen overnight. In short, experiment, experiment, there's no formula.
Check out "Joyous Clockwork" on my soundclick site for an example of the above.