Perhaps you should try some spelling variations:
corporation biography » corporate biography, reformation biography, corporate geography
federation biography » reformation biography
biography pericles » biography series, biography problems, biography periodicals
rand corporation » said corporation, road corporation, a corporation
road federation » ad federation, rag federation, word federation

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: (( rand corporation biography pericles ) OR ( road federation biography pericles )).
• Adding a wildcard symbol may retrieve word variants: (( rand corporation biography pericles ) or ( road federation biography pericles ))*.