Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
van doanh » toan doanh, van dong, van thanh
doanh qua » doanh quan, doanh cua, danh qua
trong dan » trong dang, trong san, trong tan
qua dung » quang dung, su dung, qua song
cong san » cong tac
chan cau » phan cau, can cau, chinh cau

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 sach) or (chinh sach)) - van doanh qua dung ((trong dan) or (cong san)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - van doanh qua dung ((trong dan) OR (cong san)) chan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - van doanh qua dung ((trong dan) or (cong san)) chan cau*.