Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
cua tinh » cua sinh, va tinh, ha tinh
cua hang » cua dang, cua nhung, cua cong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
o cua » co cua, do cua, bo cua

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

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