Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
tam nhung » tham nhung, nam nhung, lam 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
than tap » han tap, phan tap, than cap
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung ((tam nhung) OR (cam nhung)) cong dan ((than tap) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trung ((tam nhung) or (cam nhung)) cong dan ((than tap) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trung ((tam nhung) or (cam nhung)) cong dan ((than tap) OR (toan tap))*.