chợt nhớ lại 
to suddenly remember [ chợt ] : suddenly, all of a sudden
[ nhớ ] : to remember, recall, miss
[ lại ] : (1) again; against, over again, back towards; resume, re-; (2) to come, reach, get to; (3) (indicates something is contrary to expectations)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :