Perhaps you should try some spelling variations:
thien van » thi van
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban 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
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
sach v » sach va, sach y, sach 2

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