Perhaps you should try some spelling variations:
hang doanh » hanh doanh, nhung doanh, dung doanh
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
van doanh » toan doanh, van dong, van thanh
hieu van » hieu va, thien van, lieu va
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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) or (hieu van)) - ((hang doanh) or (van doanh)) va nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu van)) - ((hang doanh) OR (van doanh)) va nhung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu van)) - ((hang doanh) or (van doanh)) va nhung cong dan than cao*.