Perhaps you should try some spelling variations:
reformation biography » information bibliography
said reformation » a reformation, la reformation, die reformation
biography series » biography pericles, biography sources, biography sermons
und reformation » _ reformation, a reformation, der reformation

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: (( said reformation biography series ) OR ( und reformation biography series )).
• Adding a wildcard symbol may retrieve word variants: (( said reformation biography series ) or ( und reformation biography series ))*.