Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, huong dan, cong dong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: hoc hieu manh - canh tranh cua thong ((cong dan) or (((cong tan) or (cong tac)))) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh cua thong ((cong dan) OR (((cong tan) OR (cong tac)))) phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh cua thong ((cong dan) or (((cong tan) or (cong tac)))) phan dau*.