Perhaps you should try some spelling variations:
spaces studied » species studied, space studies, states studied
filosofia a » filosofia da, filosofia la, filosofia _
filosofia e » filosofia de, filosofia del
studied di » studied d, studied ii, studied vi
lens » les, less

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: lens spaces studied di ((filosofia a) OR (filosofia e)) literature*.