Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
van nhung » van nhuong, van hung, van phung
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
cong sac » cong sach, cong tac, cong san
sac thai » rac thai, sach tham, toc thai
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: ((ho trieu) OR (30 trieu)) tinh - thanh toan ((van nhung) OR (va nhung)) cong sac thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) or (30 trieu)) tinh - thanh toan ((van nhung) OR (va nhung)) cong sac thai cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (30 trieu)) tinh - thanh toan ((van nhung) OR (va nhung)) cong sac thai cao*.