Perhaps you should try some spelling variations:
te sach » toc sach
dinh ca » dinh cac, dinh cua, dinh cao
ba dinh » va dinh, xac dinh, nam dinh
hieu va » lieu va
cac tuc » cac toc, cac tu, cac tac
ca cua » co cua
tuc ba » tuc bao, tuc xa, tuc va
cua te » cua tu
y nang » ky nang, ly nang, v nang
me hoi » le hoi

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 y nang ((me hoi) OR (ma hoa)). ((hieu va) OR (hieu qua)) cac tuc ba dinh ca cua te~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((me hoi) or (ma hoa)). ((hieu va) or (hieu qua)) cac tuc ba dinh ca cua te*.