Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
van anh » van thanh, van minh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
tuan » quan, tran, luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y nang ((ma hoi) or (xa hoi)). hieu ve cham xuc ((van anh) or (tuan anh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang ((ma hoi) OR (xa hoi)). hieu ve cham xuc ((van anh) OR (tuan anh)) dai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach y nang ((ma hoi) or (xa hoi)). hieu ve cham xuc ((van anh) or (tuan anh)) dai cua tre*.