Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dong cong » duong cong, dung cong, dang cong
lanh ban » lanh bang, lang ban, doanh ban
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (dieu hanh)) - lanh ban cua dong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (dieu hanh)) - lanh ban cua dong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (dieu hanh)) - lanh ban cua dong cong dan than cao*.