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
hua khong » hoa khong, cua khong, hoac khong
he khong » he thong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than ban » thanh ban, toan ban, than man

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 ((hua khong) or (he khong)) ((cong dan) OR (cong san)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trang ((hua khong) OR (he khong)) ((cong dan) OR (cong san)) than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trang ((hua khong) or (he khong)) ((cong dan) OR (cong san)) than ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trang ((hua khong) or (he khong)) ((cong dan) OR (cong san)) than ban*.