Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
theo phap » thi phap
dung cong » dung trong
van hoanh » van hanh, van doanh, van hoang
tranh va » tranh van, trang va, trinh va
van hoan » van hoang, van hoa, van toan
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo phap)) tinh - canh tranh va dung cong ((van hoan) or (van hoanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo phap)) tinh - canh tranh va dung cong ((van hoan) OR (van hoanh)) cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo phap)) tinh - canh tranh va dung cong ((van hoan) or (van hoanh)) cau*.