Perhaps you should try some spelling variations:
duong manh » duong van
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong manh » cong danh, cong thanh, hoang manh
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

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