Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
tieu sach » chieu sach, dien sach, te sach
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
dung cong » dung trong
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - thanh ((trung cua) or (trung cap)) dung cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh ((trung cua) OR (trung cap)) dung cong thanh toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh ((trung cua) or (trung cap)) dung cong thanh toan tap*.