Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
pham duy » pham duc
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
han noi » hanh noi, ha noi, van noi
noi cua » hoi cua, doi cua, moi cua
duy va » duy vat, duy van, day va
va han » va phan, van han, va hanh
cua te » cua tu

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: hoc sach ky ((nang xa) OR (nang x)) hoi. hieu ve pham duy va han noi cua te~.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang xa) or (nang x)) hoi. hieu ve pham duy va han noi cua te*.