Perhaps you should try some spelling variations:
ban hang » ngan hang
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
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 nang ma hoi. ((hieu ve) OR (hieu van)) cac xuc ((van hanh) OR (ban hang)) vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. ((hieu ve) OR (hieu van)) cac xuc ((van hanh) or (ban hang)) vai cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. ((hieu ve) OR (hieu van)) cac xuc ((van hanh) or (ban hang)) vai cua te*.