Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dung tay » dung tai, dung may, vung tay
cham xuc » cam xuc, chat xuc, cham soc
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
dinh vi » dinh ve, dinh viet, dinh tri
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sac o, sach y
o dung » so dung, do dung, o dong
xuc va » duc va, tuc va, luc va

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: toc sach o dung tay hoi. hieu ve cham xuc va ((hanh vi) OR (dinh vi)) cua tre~.
• Adding a wildcard symbol may retrieve word variants: toc sach o dung tay hoi. hieu ve cham xuc va ((hanh vi) or (dinh vi)) cua tre*.