Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dong thanh
chieu sach » chinh sach, chiet tach, chieu sang
duong cong » dung cong, luong cong, duong trong
doi chieu » doc hieu, doi chi, ho chieu
va duong » van duong, va tuong, va huong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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 - ((doanh thanh) OR (dinh thanh)) va duong cong tan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((doanh thanh) OR (dinh thanh)) va duong cong tan phan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((doanh thanh) OR (dinh thanh)) va duong cong tan phan cau*.