Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cao » toan ban, toan tap

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 trinh va nhung ((((cong dan) OR (cong tan))) OR (cong san)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trinh va nhung ((((cong dan) OR (cong tan))) or (cong san)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh va nhung ((((cong dan) OR (cong tan))) or (cong san)) toan cao*.