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
ban thanh » ban hanh, ban hang
thanh cac » hanh cac, thanh bac, thanh ca
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
cong ban » cong bang, cong san, cong tan

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 ((tung cua) or (dung cua)) dung cong ban thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((tung cua) OR (dung cua)) dung cong ban thanh cac.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((tung cua) or (dung cua)) dung cong ban thanh cac*.