Perhaps you should try some spelling variations:
sach tham » sach nha
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
hau xuc » chat xuc
van hau » van ha, van hai, van dau
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ang xa » lang xa, mang xa, hoang xa
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: su sach tham ((((ang xa) or (dang xay))) or (nang x)) hoi. hieu van hau xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tham ((((ang xa) OR (dang xay))) OR (nang x)) hoi. hieu van hau xuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach tham ((((ang xa) or (dang xay))) or (nang x)) hoi. hieu van hau xuc va hanh vi cua tre*.