Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
cong cong » cong dong, trong cong, dung cong
cua sinh » hoa sinh, va sinh
trinh tu » trinh ky, trinh do
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang
ha tinh » va tinh, may tinh
tu cong » thu cong, te cong, tai cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: moc ((ha tinh) or (cua sinh)) - canh trinh tu cong cong ((dan than) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moc ((ha tinh) OR (cua sinh)) - canh trinh tu cong cong ((dan than) OR (ban than)) cau.
• Adding a wildcard symbol may retrieve word variants: moc ((ha tinh) or (cua sinh)) - canh trinh tu cong cong ((dan than) or (ban than)) cau*.