Perhaps you should try some spelling variations:
dong thanh » truong thanh
cong thanh » cong trinh, cong tan, truong thanh
tranh cua » doanh cua, manh cua
cua tong » cua cong, cua dong, cua nong
cong tac » cong ty
than cao » toan cao, thai cao, than cap
ha tinh » va tinh, may tinh
doi ha » doi hoa, doi va, hoi ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ha tinh - canh tranh cua tong ((cong tac) or (((cong thanh) or (dong thanh)))) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ha tinh - canh tranh cua tong ((cong tac) OR (((cong thanh) OR (dong thanh)))) than cao.
• Adding a wildcard symbol may retrieve word variants: doi ha tinh - canh tranh cua tong ((cong tac) or (((cong thanh) or (dong thanh)))) than cao*.