Perhaps you should try some spelling variations:
su sach » so sach
ly vang » ly hang, ly van, ly quang
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac thu » cach thuc, cac thoi
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly quang
vu sach » vu bach, vu khach
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
thu va » thuc va, thue va, tu va
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ((ly nang) OR (ly vang)) xa hoi. hieu ve cac thu va danh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ((ly nang) or (ly vang)) xa hoi. hieu ve cac thu va danh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ((ly nang) or (ly vang)) xa hoi. hieu ve cac thu va danh vi cua tre*.