Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » hieu nganh, dieu hanh, hien hanh
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
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: theo ((((chieu xanh) or (hieu manh))) or (chieu sach)) - canh tranh va dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu xanh) OR (hieu manh))) OR (chieu sach)) - canh tranh va dung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu xanh) or (hieu manh))) or (chieu sach)) - canh tranh va dung cong dan toan ban*.