Perhaps you should try some spelling variations:
dang xay » dang van, van xay
tham soc » cham soc, tham nuoc, thai son
van tham » van thanh, van tuan, van chat
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
lang xa » lang van
lang ha » long ha
soc va » hoc va, loc va, doc va
vi cua » vai cua, di cua
te cac » tu cac, ve cac, te cao

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