Perhaps you should try some spelling variations:
nhung cuong » nhung cong, hung cuong, nhung chong
cuong danh » cuon danh, huong dan, cuong linh
hieu lang » chieu sang, hieu quang, nhieu tang
tranh va » tranh van, trang va, trinh va
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh tranh va nhung cuong danh ((toan cau) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - canh tranh va nhung cuong danh ((toan cau) or (toan ban))*.