Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung cong » truong cong, trong cong, trung uong
hieu lang » chieu sang, hieu quang, nhieu tang
cong dang » cong dong, cong dan, cong dung
dang cong » dung cong
cong luan » tong luan, cong tuan, dong luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (hieu lang)) - thanh trung cong dang cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu lang)) - thanh trung cong dang cong luan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu lang)) - thanh trung cong dang cong luan van ban*.