Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cua te, cua triet, dua tren
dinh vi » dinh ve, dinh viet, dinh tri
cuu tre » cau tren, cau treo
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sach o » sach lo, sac o, sach y
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: toc sach o lang xa hoi. hieu ve cham xuc va ((hanh vi) OR (dinh vi)) ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach o lang xa hoi. hieu ve cham xuc va ((hanh vi) or (dinh vi)) ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: toc sach o lang xa hoi. hieu ve cham xuc va ((hanh vi) or (dinh vi)) ((cua tre) OR (cuu tre))*.