Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, nam duoc
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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 nang x ho. hieu ve ((((cam duc) or (pham duc))) or (giao duc)) va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu ve ((((cam duc) OR (pham duc))) OR (giao duc)) va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu ve ((((cam duc) or (pham duc))) or (giao duc)) va thanh vai cua tre*.