Perhaps you should try some spelling variations:
van nhanh » van thanh, van hanh, van khanh
nhanh tri » nhanh thi, thanh tri, nhanh thai
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
ro hai » co hai, o hai, do hai
so hai » son hai, su hai, so ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang ((ro hai) or (so hai)). hieu van cac xuc van nhanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((ro hai) OR (so hai)). hieu van cac xuc van nhanh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((ro hai) or (so hai)). hieu van cac xuc van nhanh tri cua tre*.