Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
doi chieu » doc hieu, doi chi, ho chieu
trang va » tran van, hang va
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan tap » toan 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 trang va nhung ((((cong dan) OR (cong tan))) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trang va nhung ((((cong dan) OR (cong tan))) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trang va nhung ((((cong dan) OR (cong tan))) or (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trang va nhung ((((cong dan) OR (cong tan))) or (cong san)) toan tap*.