Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
duong manh » duong van
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong manh » cong danh, cong thanh, hoang manh
toan cau » toan cao, toan ban, toan tap

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 ((chieu xanh) OR (chieu sang)) - canh tranh cua nhung ((cong manh) OR (duong manh)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - canh tranh cua nhung ((cong manh) OR (duong manh)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - canh tranh cua nhung ((cong manh) OR (duong manh)) toan cau*.