Perhaps you should try some spelling variations:
thanh tung » thanh cong
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
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: ((mot chieu) or (doi chieu)) sang - ((thanh trung) or (thanh tung)) cua dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chieu)) sang - ((thanh trung) OR (thanh tung)) cua dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chieu)) sang - ((thanh trung) or (thanh tung)) cua dung cong tac toan cau*.