Perhaps you should try some spelling variations:
mathematical vitalitya » mathematical vitality, mathematical reality, mathematical utility
a matematica » a mathematica, la matematica, _ matematica
e matematica » della matematica

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: (( lecture notes of the ((((a matematica) OR (e matematica))) OR (l((a matematica) OR (e matematica)))) italian ) OR ( lecture notes of the a mathematical vitalitya )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( lecture notes of the ((((a matematica) OR (e matematica))) or (l((a matematica) OR (e matematica)))) italian ) or ( lecture notes of the a mathematical vitalitya ))".
• Adding a wildcard symbol may retrieve word variants: (( lecture notes of the ((((a matematica) OR (e matematica))) or (l((a matematica) OR (e matematica)))) italian ) or ( lecture notes of the a mathematical vitalitya ))*.