Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
ban anh » ban hanh, ban banh, ban danh
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
x hoi » o hoi, x ho, 5 hoi
d cuu » _ cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((x hoi) OR (xa hoi)). hieu va cam xuc ban anh d cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((x hoi) OR (xa hoi)). hieu va cam xuc ban anh d cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((x hoi) OR (xa hoi)). hieu va cam xuc ban anh d cuu tre*.