Perhaps you should try some spelling variations:
nhung chong » nhung phong, nhung phuong, phong chong
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
luan phan » luan van, luan hoan
hoc hieu » hoc thieu, hoc hien, doc hieu
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 lang - canh tranh cua ((nhung chong) or (nhung cong)) luan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - canh tranh cua ((nhung chong) OR (nhung cong)) luan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - canh tranh cua ((nhung chong) or (nhung cong)) luan phan cau*.