Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung cap, dung cua
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trung cua) OR (trung tuan)) thong ((cong dan) OR (cong san)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((trung cua) OR (trung tuan)) thong ((cong dan) or (cong san)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trung cua) OR (trung tuan)) thong ((cong dan) or (cong san)) toan ban*.