Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
anh tang » anh bang, anh nang, anh sang
anh dang » anh dung, anh bang, anh danh
anh dong » anh huong, anh son
cong dan » cong san, cong tan, huong dan
va dung » van dung, va duong, vat dung
dan van » dang van, doan van, dao van

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 - ((anh tang) or (((anh dang) OR (anh dong)))) va dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((anh tang) OR (((anh dang) OR (anh dong)))) va dung cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((anh tang) or (((anh dang) OR (anh dong)))) va dung cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((anh tang) or (((anh dang) OR (anh dong)))) va dung cong dan van ban*.