Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
thanh cac » hanh cac, thanh ca, tranh cac
thanh bac » nhanh bac, thanh bai, thanh san
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: hoc chieu sach - thanh trung cua nhung cong dan ((thanh cac) or (thanh bac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh trung cua nhung cong dan ((thanh cac) OR (thanh bac)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh trung cua nhung cong dan ((thanh cac) or (thanh bac))*.