như gà mắc tóc 
tie oneself (up) into knots [ như ] : like, for example, as, such as, similar
[ gà ] : chicken, cock, hen, fowl
[ mắc ] : (1) to be expensive; (2) to be caught (in a trap, disaster), hang on a peg
[ tóc ] : hair (on head)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :