Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
cham xuc » cam xuc, chat xuc, cham soc
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
can ky » dan ky, ban ky, tan ky
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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: tu ((can ky) OR (van ky)) ((nang xa) OR (lang xa)) hoi. hieu qua cham xuc va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((can ky) or (van ky)) ((nang xa) OR (lang xa)) hoi. hieu qua cham xuc va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((can ky) or (van ky)) ((nang xa) OR (lang xa)) hoi. hieu qua cham xuc va hanh vi cua tre*.