Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh dai » thanh hai, thanh tai, thanh dat
hoc sach » hoc sinh, hoc cac, hoc anh
te sach » toc sach
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
ky anh » ky danh, ly anh, ty anh
anh xa » anh xay, canh xa, anh va
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (hoc sach)) ky anh xa hoi. hieu va cam duc ban thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc sach)) ky anh xa hoi. hieu va cam duc ban thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc sach)) ky anh xa hoi. hieu va cam duc ban thanh dai cua tre*.