Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
xuc ban » duc ban, cuc ban, quoc ban
ban anh » ban hanh, ban banh, ban danh
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
y nang » ky nang, ly nang, v nang
va cam » va cham, va cao, va cai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang x hoi. hieu ((va cam) or (va cac)) xuc ban anh d ((cuu tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu ((va cam) OR (va cac)) xuc ban anh d ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu ((va cam) or (va cac)) xuc ban anh d ((cuu tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu ((va cam) or (va cac)) xuc ban anh d ((cuu tre) OR (cua tre))*.