Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
ban anh » ban hanh, ban banh, ban danh
xuc ban » duc ban, cuc ban, quoc ban
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho
d cua » de cua, do cua, da cua

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 ((ty nang) OR (ty hang)) x hoi. hieu ((va cam) OR (va cao)) xuc ban anh d cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty hang)) x hoi. hieu ((va cam) or (va cao)) xuc ban anh d cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty hang)) x hoi. hieu ((va cam) or (va cao)) xuc ban anh d cua tre*.