Perhaps you should try some spelling variations:
corporation biography » corporate biography, reformation biography, federation biography
biography pericles » biography series, biography problems, biography periodicals
said corporation » a corporation
_ corporation » _ corporate

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 corporation monograph series ) OR ( said corporation biography pericles ))) OR ( _ corporation monograph series )).
• Adding a wildcard symbol may retrieve word variants: (((( said corporation monograph series ) or ( said corporation biography pericles ))) or ( _ corporation monograph series ))*.