Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
van nhung » van nhuong, va nhung, van phung
cong sach » ong sach, song sach, duong sach
sach thai » sach tham, sac thai, sach tai
van hung » van dung, manh hung, van duong
thai cao » tai cao, thoai cac, thuat cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((25 trieu) OR (30 trieu)) tinh - thanh toan ((van nhung) OR (van hung)) cong sach thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((25 trieu) or (30 trieu)) tinh - thanh toan ((van nhung) OR (van hung)) cong sach thai cao~".
• Adding a wildcard symbol may retrieve word variants: ((25 trieu) or (30 trieu)) tinh - thanh toan ((van nhung) OR (van hung)) cong sach thai cao*.