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
luan han » luan hoan, luan phan, luan san
cong tan » cong tac, cong san, cong thanh
tan hang » tan khang, ban hang, van hang
hang ca » hang va, nang cao, hang tai

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 tan hang 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 tan hang ca.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - doanh hoan ((luan han) or (luan van)) cong tan hang ca*.