Perhaps you should try some spelling variations:
thien van » thi van
hang vai » hang va, hang tai, hang hai
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
dua ban » dia ban, cua ban, qua ban
lam dua » lam cua, lam duoc, lam dung
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
vu nang » vuc nang, va nang, vu dang
v nang » va nang, van nang, voi nang

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 ((v nang) OR (vu nang)) xa hoi. ((hieu va) OR (thien van)) lam dua ban hang vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((v nang) OR (vu nang)) xa hoi. ((hieu va) or (thien van)) lam dua ban hang vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) OR (vu nang)) xa hoi. ((hieu va) or (thien van)) lam dua ban hang vai cua tre*.