Perhaps you should try some spelling variations:
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
doi chiet » doi chieu, doi chi, doi viet
trung cua » truong cua, trung cap, dung cua
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
cong san » cong tac
than cap » khan cap, thanh lap, than cua

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

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