Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
lang xa » dang xay, lang van
lang ha » long ha
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
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: hoc sach y ((lang xa) 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 ((lang xa) OR (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach y ((lang xa) or (lang ha)) hoi. hieu va cham xuc van hanh vi cua tre*.