Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
hieu ve » hieu va, hieu van
dinh tu » danh tu, dinh cu, tinh tu
luc van » luoc van, luu van, duc van
cau luc » cau truc, cau phuc
cua tre » cua te, cuu tre, cua triet
ve cau » ke cau, va cau, ve cac
te san » te ban, ke san, tu san
tu cua » hu cua, vu cua
te sac » te sach, te cac
x hoi » o hoi, x ho, 5 hoi

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: ((te sac) OR (te san)) ky nang ((x hoi) OR (xa hoi)). hieu ve cau luc van dinh tu cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te san)) ky nang ((x hoi) or (xa hoi)). hieu ve cau luc van dinh tu cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) OR (te san)) ky nang ((x hoi) or (xa hoi)). hieu ve cau luc van dinh tu cua tre*.