Perhaps you should try some spelling variations:
ideas studies » deas studies, beams studies, beads studies
la literatura » la litterature, a literature
ideas studie » deas studies, areas studio, evas studie
filosofia la » filosofia da, filosofia le, filosofica da
e filosofia » la filosofia

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "test ((ideas studie) OR (ideas studies)) e filosofia la literatura*".