Perhaps you should try some spelling variations:
corporation biographical » orientation biographical, incorporating geographical, observations biographical
corporation biography » corporate biography, reformation biography, federation biography
biographical sermons » biographical methods, biographical memoirs, biographical memoir
biography sermons » biography germany
rand corporation » road corporation, a corporation, england corporation
biography series » biography pericles, biography sources, biography studies
said corporation » a corporation, _ corporation

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 series ) OR ( said corporation biography series ))) OR ((( rand corporation biography sermons ) OR ( rand corporation biographical sermons )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( rand corporation biography series ) OR ( said corporation biography series ))) or ((( rand corporation biography sermons ) or ( rand corporation biographical sermons ))))".
• Adding a wildcard symbol may retrieve word variants: (((( rand corporation biography series ) OR ( said corporation biography series ))) or ((( rand corporation biography sermons ) or ( rand corporation biographical sermons ))))*.