Perhaps you should try some spelling variations:
luong manh » duong manh, luong thanh, duong minh
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
hung manh » nhung manh, hung anh, tung manh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - canh tranh cua cong ((hung manh) or (luong manh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh tranh cua cong ((hung manh) OR (luong manh)) toan cau*.