Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
danh di » danh du, xanh di, danh dien
dinh vi » dinh ve, dinh viet, dinh tri
cuu tre » cua tre, cau tren, cau treo
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
va cai » va bai, va dai, va cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ((va cai) OR (va cac)) duc va ((dinh vi) OR (danh di)) cuu tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ((va cai) or (va cac)) duc va ((dinh vi) or (danh di)) cuu tre*.