Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trinh vin » trinh van, trinh tin, trinh ven
dang cong » dung cong
trinh vi » trinh va, trinh ve, trinh viet
cong san » cong tac
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 vi) or (trinh vin)) dang cong san quan thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((trinh vi) OR (trinh vin)) dang cong san quan thu.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((trinh vi) or (trinh vin)) dang cong san quan thu*.