Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
van khang » van khanh, van thanh, van quang
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban
ho chau » ha chau, ho chu, o chau
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chau tinh - canh tranh ((van khang) or (va lang)) cong tan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chau tinh - canh tranh ((van khang) OR (va lang)) cong tan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chau tinh - canh tranh ((van khang) or (va lang)) cong tan ((toan cao) or (toan tap))*.