Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, hien hanh
manh hung » anh huong
cua thong » cua thuong, cua khong, cua tong
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
hung cua » huong cua, chung cua, khung cua
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: doc ((hieu manh) or (dieu hanh)) - manh hung cua thong ((cong manh) OR (cong danh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (dieu hanh)) - manh hung cua thong ((cong manh) OR (cong danh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) or (dieu hanh)) - manh hung cua thong ((cong manh) OR (cong danh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) or (dieu hanh)) - manh hung cua thong ((cong manh) OR (cong danh)) toan cau*.