Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
vap nhung » va nhung, ve nhung, voi nhung
cam nhung » cam hung, nam nhung, tham nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh trung ((vap nhung) or (cam nhung)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung ((vap nhung) OR (cam nhung)) cong dan than cau*.