Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
dang xay » dang van, van xay
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lang xa » lang van
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
lang ha » long ha
vi cua » vai cua, di cua
tu van » tu va
ve cac » va cac, vien cac

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: tu van ky ((((lang xa) OR (dang xay))) OR (lang ha)) hoi. hieu ve cac xuc van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky ((((lang xa) OR (dang xay))) or (lang ha)) hoi. hieu ve cac xuc van hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu van ky ((((lang xa) OR (dang xay))) or (lang ha)) hoi. hieu ve cac xuc van hanh vi cua tre*.