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 vat » trinh van, trinh luat, sinh vat
vat thong » va thong, vat trong, mat thong
cong dan » cong san, cong tan, huong dan
cong tac » cong ty

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