cho vay nặng lãi 
usury [ cho ] : add, give; to, for; to say, claim; in order to; let, allow, permit
[ vay ] : to borrow
[ nặng ] : (1) heavy, weighty, serious, ponderous; (2) low-constricted tone
[ lãi ] : profit, interest, dividend; to earn a profit
Most Common Compounds Set 1:
Most Common Compounds Set 2 :