Perhaps you should try some spelling variations:
pela literatura » pena literatura, la literatura, a literatura
filosofia pela » filosofia della, filosofia del, filosofia para
burst scale » bast scale, best scale, just scale
studien bei » studie bei
studien es » studien aus, studien ein, studien als

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: "burst scale ((studien es) OR (studien bei)) filosofia pela literatura*".