Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
cua tre » cua te, cuu tre, cua triet
van hoi » van hoa, van hoc, van hoe
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
dinh vi » dinh ve, dinh viet, dinh tri
luc va » duc va, tuc va, loc va
te san » te ban, ke san, tu san
o lang » hoa lang, hoi lang
xuc va » duc va, tuc va, xac va
san o » san co, san ho, san vo

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 san o lang van hoi. hieu vu kham ((xuc va) OR (luc va)) ((hanh vi) OR (dinh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san o lang van hoi. hieu vu kham ((xuc va) OR (luc va)) ((hanh vi) or (dinh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te san o lang van hoi. hieu vu kham ((xuc va) OR (luc va)) ((hanh vi) or (dinh vi)) cua tre*.