Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trinh van » trinh han, trinh quan, trinh toan
thanh ban » thanh san, thanh van, thanh bai
thanh bac » nhanh bac, thanh bai, thanh san
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh vat, trinh ve, trinh vi
cong dan » cong san, cong tan, huong dan

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