Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh van » trinh han, trinh quan, trinh toan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh vat, trinh ve, trinh vi
cong dan » cong san, cong tan, huong dan
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 va) or (trinh van)) dung cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh va) OR (trinh van)) dung cong dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh va) or (trinh van)) dung cong dan ((toan cau) or (toan ban))*.