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 » cuu tre, cua triet, dua tren
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
so sanh » do sanh
xuc va » duc va, tuc va, luc va
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (so sanh)) ky lang xa hoi. hieu ve cham xuc va hanh va ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (so sanh)) ky lang xa hoi. hieu ve cham xuc va hanh va ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (so sanh)) ky lang xa hoi. hieu ve cham xuc va hanh va ((cua tre) or (cua te))*.