Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hoc chieu » hoc thieu, ho chieu, hoc hien
ban thanh » ban hanh, ban hang
luan han » luan hoan, luan phan, luan san
cong ban » cong bang, cong san, cong tan
thanh ca » thanh cha, thanh cac, thanh ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - doanh hoan ((luan han) or (luan van)) cong ban thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - doanh hoan ((luan han) OR (luan van)) cong ban thanh ca.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - doanh hoan ((luan han) or (luan van)) cong ban thanh ca*.