Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, pham duc
lang van » dang van, tang van, hoang van
te sach » toc sach
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
cua tre » cua te, cuu tre, cua triet
hieu vu » hieu va, hieu ve, hieu su
van hoi » van hoa, van hoc, van hoe
sach o » sach lo, sac o, sach y
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 o lang van hoi. hieu vu ((cham xuc) OR (cham soc)) va ((danh vi) OR (dinh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach o lang van hoi. hieu vu ((cham xuc) OR (cham soc)) va ((danh vi) or (dinh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach o lang van hoi. hieu vu ((cham xuc) OR (cham soc)) va ((danh vi) or (dinh vi)) cua tre*.