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
van dau » van dao, phan dau
vai cua » dai cua, hai cua, lai cua
dan ban » van ban, can ban, dan ba
van cau » van hau, van chat, toan cau
sach ky » sac ky, sach y, sach ty
van cac » van hac, van bac, dan cac
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
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 lang xa hoi. thien ((van cac) or (((van cau) OR (van dau)))) dan ban thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. thien ((van cac) OR (((van cau) OR (van dau)))) dan ban thanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. thien ((van cac) or (((van cau) OR (van dau)))) dan ban thanh vai cua tre*".