Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
dung cong » dung trong
doi chau » doi chieu, gioi chau, hoi chu
tranh va » tranh van, trang va, trinh va
dan chan » dan gian, dan ca, van chat
van phan » van phong, van thanh, luan phan
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: doi chau tinh - canh tranh va dung cong ((dan chan) or (van phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chau tinh - canh tranh va dung cong ((dan chan) OR (van phan)) cau*.