Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh van » tran van, trinh van, thanh van
dung cong » dung trong
hoc hieu » hoc thieu, hoc hien, doc hieu
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - canh tranh van dung cong dan ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh van dung cong dan ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh van dung cong dan ((phan cau) or (phan tu))*.