Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
cua nhung » va nhung
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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: theo ((chieu sang) OR (chieu sach)) - canh doanh cua nhung cong ((van toan) OR (van tuan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu sach)) - canh doanh cua nhung cong ((van toan) OR (van tuan)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - canh doanh cua nhung cong ((van toan) OR (van tuan)) cao*.