Perhaps you should try some spelling variations:
dung cong » dung trong
gian chau » gian cham, gian cua, gian cac
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
tranh va » tranh van, trang va, trinh va
cong san » cong tac
san gian » dan gian, san giao, van gian
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: ((ho chieu) or (((theo chu) or (theo tieu)))) tinh - canh tranh va dung cong san gian chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chu) OR (theo tieu)))) tinh - canh tranh va dung cong san gian chau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo chu) or (theo tieu)))) tinh - canh tranh va dung cong san gian chau*.