Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van dinh » van minh, van dich, va dinh
te sach » toc sach
cao duc » dao duc, cao suc, giao duc
vu dinh » quy dinh
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
cam duc » cam xuc, pham duc, nam duoc
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua

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 sach ky nang xa hoi. hieu van ((cam duc) OR (cao duc)) ((vu dinh) OR (van dinh)) vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu van ((cam duc) OR (cao duc)) ((vu dinh) or (van dinh)) vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van ((cam duc) OR (cao duc)) ((vu dinh) or (van dinh)) vi cua tre*.