Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh luan » doanh nhan
hieu lang » chieu sang, hieu quang, nhieu tang
anh doanh » hanh doanh, anh danh, doanh doanh
luan phan » luan van, luan hoan
phan cong » thanh cong
cong tac » cong ty
tac van » tac vang, cac van, tac va
van dau » van dao, phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (hieu lang)) - anh doanh luan phan cong tac van dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (hieu lang)) - anh doanh luan phan cong tac van dau*.