Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
cong dang » cong dong, cong dan, cong danh
cong dung » cuong dung, cong dong, cong luong
thanh cac » hanh cac, thanh bac, thanh ca
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh ((trung cua) or (trung tuan)) nhung ((cong dang) OR (cong dung)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung cua) OR (trung tuan)) nhung ((cong dang) OR (cong dung)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung cua) or (trung tuan)) nhung ((cong dang) OR (cong dung)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung cua) or (trung tuan)) nhung ((cong dang) OR (cong dung)) thanh cac*.