Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 sang) or (chieu xanh))) or (hieu lang)) - thanh trung cua nhung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sang) OR (chieu xanh))) OR (hieu lang)) - thanh trung cua nhung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sang) or (chieu xanh))) or (hieu lang)) - thanh trung cua nhung cong dan than ban*.