Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
van khang » van khanh, van thanh, van quang
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
cong tan » cong tac, cong san, cong thanh
va hang » van hang, va nang, va lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - canh tranh ((va hang) or (van khang)) cong tan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh tranh ((va hang) OR (van khang)) cong tan thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - canh tranh ((va hang) or (van khang)) cong tan thanh lap*.