Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong tan, huong dan, cong tac
cong san » cong tac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh va nhung ((((cong dan) OR (cong dong))) or (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh va nhung ((((cong dan) OR (cong dong))) OR (cong san)) toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh va nhung ((((cong dan) OR (cong dong))) or (cong san)) toan ban*".