Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, te sach
ky tang » kho tang, ky trong, tay tang
ky dang » ky danh
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
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: tu sach ((((ky tang) or (ky nang))) or (ky dang)) xa hoi. lieu va cam duc ban thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ky tang) OR (ky nang))) OR (ky dang)) xa hoi. lieu va cam duc ban thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((((ky tang) or (ky nang))) or (ky dang)) xa hoi. lieu va cam duc ban thanh vai cua tre*.