Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doc chieu » doc hieu, doi chieu, toc thieu
tong cong » trong cong, cong cong, dung cong
anh quan » anh tuan, ban quan, anh nhan
anh dung » anh dong, anh huong, sach dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
va tong » va thong, va tuong, va trong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu xanh - ((anh quan) or (anh dung)) va tong cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu xanh - ((anh quan) OR (anh dung)) va tong cong dan than ban*.