Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
hanh trung » thanh trung, hanh trang, manh trung
thanh tung » thanh cong
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: theo chiet tach - ((((hanh trung) or (thanh tung))) or (canh tranh)) cua dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - ((((hanh trung) OR (thanh tung))) OR (canh tranh)) cua dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - ((((hanh trung) or (thanh tung))) or (canh tranh)) cua dung cong tac toan cau*.