Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, truong thanh
thanh toan » thanh hoa, thanh san
doi chieu » doc hieu, doi chi, ho chieu
tran tuan » tran xuan, tran quang, tran thanh
ban cong » bang cong, van cong, phan cong

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