Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
vu cham » va cham, vu kham, tu cham
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
hieu vu » hieu va, hieu ve, hieu su
cua tre » cua te, cuu tre, cua triet
van hoi » van hoa, van hoc, van hoe
xuc va » duc va, tuc va, luc va
o lang » hoa lang, hoi lang

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