Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung cap, dung cua
cong dan » cong san, cong tan, huong dan
ca cap » cao cap, cac cap, ca cac

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

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