Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
bo sach » co sach, hoc sach
nang xa » nang x, lang xa, nang ma
lang ha » long ha
xuc van » duc van, luc van, xuc ban
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach y ((nang xa) or (lang ha)) hoi. hieu qua cham xuc van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach y ((nang xa) OR (lang ha)) hoi. hieu qua cham xuc van hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: bo sach y ((nang xa) or (lang ha)) hoi. hieu qua cham xuc van hanh vi cua tre*.