Perhaps you should try some spelling variations:
ban hang » ngan hang
trong xu » thong xu, trong su, trong thu
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
tang xa » trang xa, tang ma, lang xa
vi cua » vai cua, di cua
cua te » cua tu

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: tu sach y ((tang xa) OR (trong xu)) hoi. hieu van cac xuc ((ban hanh) OR (ban hang)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((tang xa) or (trong xu)) hoi. hieu van cac xuc ((ban hanh) OR (ban hang)) vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((tang xa) or (trong xu)) hoi. hieu van cac xuc ((ban hanh) OR (ban hang)) vi cua te*.