Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh suc » trinh su, trinh duc, trinh muc
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
suc dung » su dung, duc dung, tuc dung
cong san » cong tac

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