Perhaps you should try some spelling variations:
su sach » so sach, vu sach
ky dang » ky danh
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
va dao » ca dao
loc va » hoc va, luc va
va cua » va chua, via cua, ca 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 ((ky dang) or (ky nang)) xa hoi. lieu ((va cham) or (va dao)) loc va hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky nang)) xa hoi. lieu ((va cham) OR (va dao)) loc va hanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) or (ky nang)) xa hoi. lieu ((va cham) or (va dao)) loc va hanh va cua tre*.