Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
van tuong » van truong, van thuong, van duong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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) or (mot chieu)) sang - canh tranh van tuong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (mot chieu)) sang - canh tranh van tuong cong tac toan cau*.