Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
duong manh » duong van
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong manh » cong danh, cong thanh, hoang manh
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh tranh cua nhung ((cong manh) or (duong manh)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh tranh cua nhung ((cong manh) OR (duong manh)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh tranh cua nhung ((cong manh) or (duong manh)) ((toan cau) or (toan ban))*.