Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
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: hoc 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: hoc 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: hoc sach y ((((mang xa) or (mang may))) or (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre*.