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
cong vat » dong vat, cong va, cang vat
vat dung » van dung, va dung, viet dung
cong san » cong tac
hang cau » hang ca, nhung cau, nang cao
hang dau » hang va, hang tai

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 - thanh cong vat dung cong san ((((hang cau) or (nhung bai))) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh cong vat dung cong san ((((hang cau) OR (nhung bai))) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh cong vat dung cong san ((((hang cau) or (nhung bai))) or (hang dau))*.