Perhaps you should try some spelling variations:
nong thanh » dong thanh, cong thanh, rong thanh
thanh toan » thanh hoa, thanh san, tinh toan
chua xang » chua nang, chu bang, chua dong
cua nhung » va nhung
anh dang » anh dong, anh dung, anh bang
cua hang » cua dang, cua cong, cua ban
toan ban » van ban

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: theo ((chuc nang) OR (chua xang)) - anh dang ((cua hang) OR (cua nhung)) nong thanh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc nang) or (chua xang)) - anh dang ((cua hang) OR (cua nhung)) nong thanh toan ban~".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc nang) or (chua xang)) - anh dang ((cua hang) OR (cua nhung)) nong thanh toan ban*.