Perhaps you should try some spelling variations:
dong doanh » dung doanh, trong doanh, doanh doanh
chai tinh » chau tinh, thai tinh, cham tinh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
dong doan » cong doan, dong don, dong dan
chi binh » chi minh, thi binh, thai binh
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chai tinh) or (chi binh)) - canh tranh cua nhung ((dong doan) OR (dong doanh)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chai tinh) OR (chi binh)) - canh tranh cua nhung ((dong doan) OR (dong doanh)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chai tinh) or (chi binh)) - canh tranh cua nhung ((dong doan) OR (dong doanh)) phan dau".
• Adding a wildcard symbol may retrieve word variants: doi ((chai tinh) or (chi binh)) - canh tranh cua nhung ((dong doan) OR (dong doanh)) phan dau*.