Perhaps you should try some spelling variations:
dinh dai » dinh dat, sinh dai, dinh dao
tu sach » thu sach, su sach, te sach
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, cua triet
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
va cai » va cac, va bai, va dai

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: tu sach ((ty nang) OR (ty hang)) xa hoi. hieu ((va cai) OR (ve cac)) xuc va dinh dai cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) or (ty hang)) xa hoi. hieu ((va cai) or (ve cac)) xuc va dinh dai cua tre*.