Perhaps you should try some spelling variations:
dinh dien » tinh dien, kinh dien, dich dien
nuoc sach » nguoi sach, cuoc cach, cuon sach
hoc sach » hoc sinh, hoc cac, hoc anh
dien cua » dieu cua, dien cuc, dien cu
va dinh » van dinh, va kinh, va tinh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
v nang » va nang, vu nang, van nang
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
o hoc » co hoc, mo hoc, so hoc

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) OR (((dac sac) OR (nuoc sach)))) v nang o hoc. hieu va cam luc va dinh dien cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (((dac sac) or (nuoc sach)))) v nang o hoc. hieu va cam luc va dinh dien cua tre*.