Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu va » lieu va, hieu qua
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
anh bai » sach bai, danh bat, hinh bai
bai cua » ban cua, dai cua, bai ca
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

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: thuoc sach y nang x hoi. hieu va cam ((xuc van) OR (luc van)) anh bai cua tre~.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang x hoi. hieu va cam ((xuc van) or (luc van)) anh bai cua tre*.