Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chiu trach
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
hang cong » dang cong, hang nong, bang cong
van hang » van khang, van hoang, van thang
cong tac » cong ty
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tach - canh tranh van hang cong tac ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tach - canh tranh van hang cong tac ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu tach - canh tranh van hang cong tac ((toan cao) or (toan tap))*.