lên tiếng yêu cầu 
to voice, raise a request [ lên ] : to go up, arise, come up
[ tiếng ] : (1) language, sound, voice, reputation; (2) hour
[ yêu ] : to love, be in love with
[ cầu ] : (1) bridge; (2) to request, demand, desire; (3) toilet; (4) sphere, ball; birdie (badminton)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :