Perhaps you should try some spelling variations:
dong doanh » trong doanh, doanh doanh, dong thanh
chieu sach » chinh sach, chiet tach, chieu sang
dung doanh » dung dan, dung dong
doi chieu » doc hieu, doi chi, ho chieu
mang cua » manh cua, dung cua, ban cua
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - cach mang cua dung ((dong doanh) or (dung doanh)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - cach mang cua dung ((dong doanh) OR (dung doanh)) phan tu.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - cach mang cua dung ((dong doanh) or (dung doanh)) phan tu*.