Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
sach ky » sac ky, sach y, sach kem
vai cua » dai cua, hai cua, lai cua
cac cua » cach cua, cac qua, ca cua
cac cuc » cac cuoc, cac nuoc, cac cach
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
danh xa » danh ca, dinh xa, canh xa
sach ty » sach y, sach tu, sach thu

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