Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh dung » thanh duong, thanh tung, thanh hung
dang cong » dung cong
cho dang » cao dang, cho hang, cho dong
cong dan » cong san, cong tan, huong dan
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 sang) or (chieu xanh)) - thanh dung cho dang cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu xanh)) - thanh dung cho dang cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chieu xanh)) - thanh dung cho dang cong dan van ban*.