Perhaps you should try some spelling variations:
kham xuc » kham xung, kham cuoc, cam xuc
van hoi » van hoa, van hoe, van loi
van hoc » van hoa
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
dinh ve » dinh ket, dinh van
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
o lang » hoa lang, hoi lang
xuc va » duc va, tuc va, luc va

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