Perhaps you should try some spelling variations:
chi thanh » chi nhanh, thi thanh, cho thanh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
cong toan » cong hoan, cong tuan, cong doan
chi hanh » chi nhanh, thi hanh, chi anh
cong tan » cong tac, cong san, cong thanh
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 ((chi hanh) OR (chi thanh)) - canh tranh van nhung ((cong toan) or (cong tan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi hanh) OR (chi thanh)) - canh tranh van nhung ((cong toan) OR (cong tan)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi hanh) OR (chi thanh)) - canh tranh van nhung ((cong toan) or (cong tan)) phan dau".
• Adding a wildcard symbol may retrieve word variants: doi ((chi hanh) OR (chi thanh)) - canh tranh van nhung ((cong toan) or (cong tan)) phan dau*.