Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh huong » thanh huong, anh huong, manh huong
doanh phan » doanh nhan, doan phan, doanh thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan hanh » dang hanh, dan khanh, dan thanh
dan phan » doan phan, dan chan, van phan

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 - thanh cong dan hanh huong ((dan phan) or (doanh phan)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh cong dan hanh huong ((dan phan) OR (doanh phan)) lap*.