Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
tranh viet » tran viet, trinh viet, trang viet
thanh phan » thanh pho, thanh san, thanh toan
cong dang » cong dong, cong dung, cong danh
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - canh tranh viet trung ((cong dan) or (cong dang)) thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh tranh viet trung ((cong dan) OR (cong dang)) thanh phan*.