điên đầu tính toán 
to go crazy trying to figure out [ điên ] : mad, crazy, insane
[ đầu ] : (1) beginning, first; (2) head, mind, pole, end, hood (of a car)
[ tính ] : (1) to intend, contemplate, plan to; (2) to count, calculate, compute
[ toán ] : gang, group, party, team; mathematics
Most Common Compounds Set 1:
Most Common Compounds Set 2 :