Perhaps you should try some spelling variations:
large studien » lage studien, large student, frage studien
de filologia » di filologia, de filosofia, e fisiologia
y literatura » la literatura
filologia y » filologia e, filologica e, filosofia y

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 ((large studien) OR (large strain)) de filologia y literatura".
• Adding a wildcard symbol may retrieve word variants: tests ((large studien) OR (large strain)) de filologia y literatura*.