Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh lang » thanh long, nhanh lang, thanh hang
hieu lang » hieu quang, nhieu tang, hieu van
dang cong » dung cong
lang van » dang van, tang van, hoang van
van dang » van dong, van dung, van nang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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 (hieu lang)) - thanh lang van dang cong dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (hieu lang)) - thanh lang van dang cong dan than man*".