Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chong cong » cong cong, thong cong, cuong cong
toc chieu » toc thieu, doc hieu, hoc thieu
dung phan » dung nhan, dung luan, dung ha
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
ca ban » cua ban, can ban, cac ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu sang - thanh ((trung ha) or (dung phan)) chong cong dan ca ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sang - thanh ((trung ha) OR (dung phan)) chong cong dan ca ban*.