Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
tranh vat » trinh vat, tranh va, tranh van
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » hoc thieu, doi chieu, mot chieu
vat dung » van dung, va dung, viet dung
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) tinh - canh tranh vat dung cong ((dan toan) or (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - canh tranh vat dung cong ((dan toan) OR (manh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) tinh - canh tranh vat dung cong ((dan toan) or (manh toan)) tap*.