Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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 nhung ((cong dong) or (((cong san) or (cong thanh)))) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh tranh cua nhung ((cong dong) OR (((cong san) OR (cong thanh)))) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh tranh cua nhung ((cong dong) or (((cong san) or (cong thanh)))) phan cau*.