trước thềm thế kỷ 
at the turn of the century [ trước ] : before, in front, previously; faced with, in the face of, ahead of
[ thềm ] : floor
[ thế ] : (1) manner, way, fashion, position, situation, posture; (2) so, thus, like that, such
[ kỷ ] : (1) order, discipline; (2) small table, bench; (3) self; (4) to write, record; (5) cycle, era; (6) 6th cycle of the twelve years of the Chinese zodiac
Most Common Compounds Set 1:
Most Common Compounds Set 2 :