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 dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
cong tan » cong tac, cong san, cong thanh
va dung » van dung, va duong, vat dung
tan van » tran van, tang van, luan 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 bang)) va dung cong tan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((anh tang) OR (anh bang)) va dung cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((anh tang) OR (anh bang)) va dung cong tan van ban*.