Perhaps you should try some spelling variations:
de litterature » la litterature, et litterature
space studies » peace studies, surface studies
de literature » de lite'rature, de literatura, e literature
ds filosofia » di filosofia, de filosofia, da filosofia
fast space » past space, first space, fast sparse

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: "fast space studies ds filosofia ((de literature) OR (de litterature))".
• Adding a wildcard symbol may retrieve word variants: fast space studies ds filosofia ((de literature) OR (de litterature))*.