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
hoan giao » khoan giao, hoa giao, toan giao
giao tang » gia tang, giao thong, giao thanh
cong dan » cong san, cong tan, cong dong
than ma » than man, than va, khan ma

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 giao tang ((cong dan) or (huong dan)) than ma~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - doanh hoan giao tang ((cong dan) OR (huong dan)) than ma*.