Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ban benh » san benh, ba benh, ban banh
van cam » van nam, van cau, van dam
van lam » van nam
cuc ban » cua ban, cac ban, cuu ban
benh di » benh dai, ben di, benh da
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu ((van cam) OR (van lam)) cuc ban benh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu ((van cam) OR (van lam)) cuc ban benh di cua tre*.