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 cua » tinh cua, trinh luat, trinh quan
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, song van, cong tan
cong san » cong tac
chat cau » chat cao, chat va, chat ban
chat cam » chat cao, thuat cam, chat va

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 cua dung ((cong van) or (cong san)) ((chat cau) OR (chat cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh cua dung ((cong van) OR (cong san)) ((chat cau) OR (chat cam))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh cua dung ((cong van) or (cong san)) ((chat cau) OR (chat cam))*".