Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, vat dung

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 xanh) or (lieu tinh)) - canh tranh va dung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (lieu tinh)) - canh tranh va dung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (lieu tinh)) - canh tranh va dung cong san toan cau*.