Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoc hieu » hoc thieu, doc hieu, hoc dieu
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
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) or (hoc hien)) manh - canh tranh cua nhung cong dan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) manh - canh tranh cua nhung cong dan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc hien)) manh - canh tranh cua nhung cong dan ((phan cau) or (phan dau))*.