Perhaps you should try some spelling variations:
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tang xa » trang xa, tang ma, lang xa
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cai, ve cau
va cam » va cham, va cac, va cao

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: tu sach kho tang xa hoi. hieu ((((ve cam) OR (va cam))) OR (ve cac)) tuc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach kho tang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cac)) tuc va hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach kho tang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cac)) tuc va hanh vai cua tre*.