Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
toan cao » toan tap
ho chau » ho chu, o chau, khoa chau
ha chau » hat chau, a chau, lai chau

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) or (ha chau)) tinh - canh tranh cua nhung cong tan ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chau) OR (ha chau)) tinh - canh tranh cua nhung cong tan ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ((ho chau) or (ha chau)) tinh - canh tranh cua nhung cong tan ((toan ban) or (toan cao))*.