Perhaps you should try some spelling variations:
la litterature » a literature
die filosofica » di filosofia, de filosofia, e filosofica
cable studies » table studies, cattle studies, scale studies
la literatura » a literature
tests cable » tests table, tests stable, tests tables
studies die » studies does, studies dose, studies ds

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: tests cable studies die filosofica ((la literatura) OR (la litterature)).
• Adding a wildcard symbol may retrieve word variants: tests cable studies die filosofica ((la literatura) or (la litterature))*.