đầu óc cởi mở 
open minded [ đầu ] : (1) beginning, first; (2) head, mind, pole, end, hood (of a car)
[ óc ] : brain, spirit, mind
[ cởi ] : to take off, loosen, unfasten, unwrap
[ mở ] : to open, start, begin, turn on, set up
Most Common Compounds Set 1:
Most Common Compounds Set 2 :