nài bao khó nhọc 
to defy troubles, not to flinch from hard work [ nài ] : to mind
[ bao ] : (1) how much, many, so much, so many, some, any; (2) envelope, bag, pack, case, sleeve; to cover, enclose
[ khó ] : hard, difficult
[ nhọc ] : weary, tired, worn out
Most Common Compounds Set 1:
Most Common Compounds Set 2 :