Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
truong cua » truong ca, truong quan, truong cao
hieu sang » chieu sang, hieu lang, hieu quang
cong cong » cong dong, trong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
hang tai » hang va, dung tai
than cap » khan cap, thanh lap, thanh cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - thanh truong cua cong cong dan ((hang tai) OR (than cap))~.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - thanh truong cua cong cong dan ((hang tai) or (than cap))*.