Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cua triet, dua tren
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
dan vi » doan vi, don vi, dan 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 ((y nang) OR (v nang)) ma hoa. hieu ve cham xuc va dan vi ((cuu tre) OR (cua tre))~.
• Adding a wildcard symbol may retrieve word variants: toc sach ((y nang) or (v nang)) ma hoa. hieu ve cham xuc va dan vi ((cuu tre) or (cua tre))*.