Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
hoc sach » hoc sinh, hoc cac, hoc anh
thanh ve » hanh ve, thanh va, thanh vien
thuc ban » thuoc ban, thuc dan, thu ban
hau thuc » huu thuc, ha thuc, mau thuc
van hau » van ha, van hai, van dau
cua tre » cua te, cuu tre, cua triet
danh xa » danh ca, dinh xa, canh xa
ky danh » ky anh, ky dang
co sach » bo sach, cuon sach
ve cua » le cua, de cua, te 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: ((vu bach) OR (((hoc sach) OR (co sach)))) ky danh xa hoi. hieu van hau thuc ban thanh ve cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((vu bach) or (((hoc sach) or (co sach)))) ky danh xa hoi. hieu van hau thuc ban thanh ve cua tre*.