Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
nhung cong » dung cong, thong cong, hang cong
van nhung » van nhuong, va nhung, van hung
cong sach » ong sach, song sach, duong sach
thoai cac » tai cac, thong cac, tho cac
toan van » tran van, toan ban, tan van
thai cao » tai cao, thuat cao, toan 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 cong sach ((thai cao) OR (thoai cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((25 trieu) or (30 trieu)) tinh - thanh toan van nhung cong sach ((thai cao) OR (thoai cac))~".
• Adding a wildcard symbol may retrieve word variants: ((25 trieu) or (30 trieu)) tinh - thanh toan van nhung cong sach ((thai cao) OR (thoai cac))*.