Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trinh van » trinh han, trinh quan, trinh toan
dung cong » dung trong
trinh va » trinh vat, trinh ve, trinh vi
san quan » van quan, ban quan, dan quan
quan thu » tuan thu, quan khu, xuan thu

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