Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hoc sach » hoc sinh, hoc cac, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet

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: hoc sach ky ((nang xa) OR (nang x)) hoi. hieu ve cham xuc ((ban thanh) OR (va danh)) nam cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky ((nang xa) OR (nang x)) hoi. hieu ve cham xuc ((ban thanh) or (va danh)) nam cua tre~".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang xa) OR (nang x)) hoi. hieu ve cham xuc ((ban thanh) or (va danh)) nam cua tre*.