Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
bo sach » co sach, hoc sach
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
mang xa » lang xa, dang xay, mang cua
lang ha » long ha
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 ((((mang xa) OR (mang may))) or (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach y ((((mang xa) OR (mang may))) OR (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach y ((((mang xa) OR (mang may))) or (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: bo sach y ((((mang xa) OR (mang may))) or (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre*.