Perhaps you should try some spelling variations:
chiet tach » chieu sach
doi chiet » doi chieu, doi chi, doi viet
cua dang » cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
cua van » cua ban, cua vat, cua dan

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

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