Perhaps you should try some spelling variations:
"a corporation biography series" » "a corporate biography series", "a reformation biography series", "a corporate geography series", "a corporation biography pericles", "a corporation biography sermons", "a corporation biography studies", "_ corporation biography series"
"a corporation biography sources" » "a corporate biography sources", "a reformation biography sources", "a corporate geography sources", "a corporation bibliography resources", "_ corporation biography sources"
"rand federation biography series" » "rand reformation biography series", "rand federation biography pericles", "rand federation biography sermons", "rand federation biography studies", "ad federation biography series", "rag federation biography series", "road federation biography series"

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: "((\"rand federation biography series\") OR (((\"a corporation biography series\") OR (\"a corporation biography sources\"))))".
• Removing quotes may allow a broader search: (( rand federation biography series ) OR ((( a corporation biography series ) OR ( a corporation biography sources )))).
• Adding a wildcard symbol may retrieve word variants: (("rand federation biography series") OR ((("a corporation biography series") OR ("a corporation biography sources"))))*.