Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung cap, dung cua
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tan, tran tuan

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

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