Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
va han » va phan, van han, va hang
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) or (hoc sach)) ky nang x hoi. lieu va cam tuc ((va han) or (va hanh)) tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (hoc sach)) ky nang x hoi. lieu va cam tuc ((va han) OR (va hanh)) tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (hoc sach)) ky nang x hoi. lieu va cam tuc ((va han) or (va hanh)) tai cua tre*.