Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
lanh sang » anh sang, lanh bang, doanh sang
dung cong » dung trong
anh dang » anh dong, anh dung, anh bang
van dung » van dong, xay dung, tin dung
cong san » cong tac
san van » tan van, luan van, tran van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((lanh sang) OR (anh dang)) van dung cong san van ban~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((lanh sang) or (anh dang)) van dung cong san van ban*.