Perhaps you should try some spelling variations:
dinh viet » ninh viet, danh viet, trinh viet
hieu hien » bieu hien, dieu hien, chieu chien
toc sach » hoc sach, doc sach, thuoc sach
hien cac » thien cac, vien cac, hieu cac
viet cua » viec cua, viet ca, viet qua
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
cac duc » cac du, cao duc, cac dac
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, cua triet

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 ((ty nang) OR (ty hang)) xa hoi. hieu hien cac duc va dinh viet cua tre~.
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) or (ty hang)) xa hoi. hieu hien cac duc va dinh viet cua tre*.