Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, 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: te sach ky ((nang xa) OR (nang ma)) hoi. hieu ve cham xuc ((ban thanh) OR (van hanh)) nam cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) OR (nang ma)) hoi. hieu ve cham xuc ((ban thanh) or (van hanh)) nam cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) OR (nang ma)) hoi. hieu ve cham xuc ((ban thanh) or (van hanh)) nam cua tre*.