like: khóa bản
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
khóa bản * ☊ 
textbook * ☊
[ khóa ] : (1) school year, academic year, term; (2) to lock, fasten; lock
[ bản ] : (1) edition, version, tablet, block, copy, print, piece, document, edition, impression; (2) [CL for scripts, songs, plays, statements, treaties]; (3) root, basis, base, origin, source
[ khóa ] : lock