like: vài tuần trước khi
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
vài tuần trước khi * ☊ 
a few weeks before * ☊
[ vài ] : some, few, several
[ tuần ] : (1) week, 10 days, decade; (2) round, turn around; (3) to visit, guard, patrol
[ trước ] : before, in front, previously; faced with, in the face of, ahead of
[ khi ] : occasion, time (when something happens), when, at the time of, if
[ tuần ] : week
[ trước ] : advance
[ trước ] : before
[ trước ] : front
[ trước ] : in advance
[ trước ] : previous
[ trước ] : previously
[ trước ] : prior