Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, ang xa
mang xa » mang may, dang xay, mang cua
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
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: so sach ky ((((nang xa) OR (mang xa))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((((nang xa) OR (mang xa))) OR (lang xa)) hoi. hieu ve cham xuc van hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((((nang xa) OR (mang xa))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky ((((nang xa) OR (mang xa))) or (lang xa)) hoi. hieu ve cham xuc van hanh vi cua tre*.