Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
anh tang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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: doc ((chieu xanh) OR (chieu sang)) - ((anh tang) OR (anh bang)) cua nhung cong san than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) or (chieu sang)) - ((anh tang) OR (anh bang)) cua nhung cong san than cau~".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) or (chieu sang)) - ((anh tang) OR (anh bang)) cua nhung cong san than cau*.