Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua ban
cong san » cong tac
than tap » toan tap, phan tap, than cap
han tap » han tai, toan tap, nhan tai

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 tang ((cua dang) OR (cua cong)) cong san ((than tap) OR (han tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tang ((cua dang) or (cua cong)) cong san ((than tap) OR (han tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tang ((cua dang) or (cua cong)) cong san ((than tap) OR (han tap))*.