Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cuc ban » cua ban, cac ban, cuu ban
xuc ban » duc ban, quoc ban, xuat ban
va cham » va chat, va tham
nang o » nang co, nang ho, nang ro
cua te » cua tu
o hoi » co hoi, o hoc, o hai
d cua » de cua, do cua, da 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: ((te sach) OR (toc sach)) ky nang o hoi. lieu va cham ((xuc ban) OR (cuc ban)) anh d cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ky nang o hoi. lieu va cham ((xuc ban) OR (cuc ban)) anh d cua te~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky nang o hoi. lieu va cham ((xuc ban) OR (cuc ban)) anh d cua te*.