Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
thanh cau » thanh chau, thanh mau, thanh ca
nhanh cau » thanh chau, nhanh ha, hang cau
nhanh cay » nhanh ha, nhanh bac, nhanh va
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung

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 - thanh tung cua dung cong dang ((thanh cau) or (((nhanh cau) OR (nhanh cay))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung cua dung cong dang ((thanh cau) OR (((nhanh cau) OR (nhanh cay)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung cua dung cong dang ((thanh cau) or (((nhanh cau) OR (nhanh cay))))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung cua dung cong dang ((thanh cau) or (((nhanh cau) OR (nhanh cay))))*.