Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
large studien » lage studien, large student, large strain
de filologia » di filologia, e fisiologia
de filosofia » e filosofia, di filosofia, la filosofia
tests large » test large, tests target, jets large

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 large studien ((de filologia) OR (de filosofia)) la literatura.
• Adding a wildcard symbol may retrieve word variants: tests large studien ((de filologia) or (de filosofia)) la literatura*.