Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
khoan cam » khoa cam, khoan va, phan cam
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, cong tan, huong dan
khan cap » khan ap, than cap, phan cac

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 tung cua nhung cong dan ((khan cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh tung cua nhung cong dan ((khan cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh tung cua nhung cong dan ((khan cap) or (khoan cam))*.