Perhaps you should try some spelling variations:
te sach » toc sach
loai va » loai nam
van hac » van hoc, van ha, van hai
sach ky » sac ky, sach y, sach ty
van bac » van ban, van bao, dan bac
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua
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: te sach ky ((mang xa) OR (lang xa)) hoi. hieu ((van bac) OR (van hac)) loai va dan di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((mang xa) or (lang xa)) hoi. hieu ((van bac) OR (van hac)) loai va dan di cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((mang xa) or (lang xa)) hoi. hieu ((van bac) OR (van hac)) loai va dan di cua te*.