giúp đỡ nhau 
to help each other [ giúp ] : to help, aid, assist
[ đỡ ] : to help, assist (by assuming burden), parry, ward off, turn aside, prop, hold up, relieve
[ nhau ] : (1) together, in company, each other; (2) placenta
Most Common Compounds Set 1:
Most Common Compounds Set 2 :