Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
canh manh » lanh manh, cach mang, van manh
cua nhung » va nhung
cua tinh » cua sinh, va tinh, ha tinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: ho ((chieu sang) or (cua tinh)) - ((canh manh) OR (canh tranh)) cua nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (cua tinh)) - ((canh manh) OR (canh tranh)) cua nhung cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (cua tinh)) - ((canh manh) OR (canh tranh)) cua nhung cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (cua tinh)) - ((canh manh) OR (canh tranh)) cua nhung cong dan toan cau*.