Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
van hanh » van thanh, ban hanh, van anh
hanh tri » thanh tri, hanh tai, hanh trinh
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
bao xuc » bao luc, bao thuc
xuc van » duc van, luc van, vuc van
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: so ((sach ky) OR (sach y)) nang xa hoi. ((hieu van) OR (thien van)) bao xuc van hanh tri cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) or (sach y)) nang xa hoi. ((hieu van) OR (thien van)) bao xuc van hanh tri cua tre~".
• Adding a wildcard symbol may retrieve word variants: so ((sach ky) or (sach y)) nang xa hoi. ((hieu van) OR (thien van)) bao xuc van hanh tri cua tre*.