Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan hang » quan hoang, quan lang, quan hanh
ho chieu » theo chieu, hoc thieu, doi chieu
nong dan » cong dan, nguong dan, huong dan
nong san » cong san, dong san, trong san
toan cau » toan cao, toan tap, toan tai
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: ho chieu sach - hanh trinh quan hang ((nong dan) OR (nong san)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh quan hang ((nong dan) OR (nong san)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trinh quan hang ((nong dan) OR (nong san)) ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh quan hang ((nong dan) OR (nong san)) ((toan cau) or (toan ban))*.