Perhaps you should try some spelling variations:
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, chi thanh, thi hanh
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
phan dau » phan tu, hang dau
doi chi » doi khi

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 - canh tranh van nhung ((cong toan) or (((cong tan) OR (cong san)))) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - canh tranh van nhung ((cong toan) OR (((cong tan) OR (cong san)))) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi hanh - canh tranh van nhung ((cong toan) or (((cong tan) OR (cong san)))) phan dau".
• Adding a wildcard symbol may retrieve word variants: doi chi hanh - canh tranh van nhung ((cong toan) or (((cong tan) OR (cong san)))) phan dau*.