Perhaps you should try some spelling variations:
der filosofica » e filosofica, e filosofia, di filosofia
la literatura » la litterature, a literature
de filosofia » e filosofia, di filosofia, la filosofia
life studie » life studies, life study, life stories
tests life » test life, tests like, yeasts life

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: "tests life studie ((der filosofica) OR (de filosofia)) la literatura".
• Adding a wildcard symbol may retrieve word variants: tests life studie ((der filosofica) OR (de filosofia)) la literatura*.