cải bổ 
to use in another capacity [ cải ] : (1) to change, reform, tap; (2) cabbage
[ bổ ] : (1) to hit, split, cleave, open (a fruit); (2) nutritious, nourishing; (3) to add, complement, supplement; (4) to appoint, name
Most Common Compounds Set 1:
Most Common Compounds Set 2 :