Perhaps you should try some spelling variations:
"rand corporation biography series" » "rand corporate biography series", "rand reformation biography series", "rand federation biography series", "said corporation biography series", "road corporation biography series", "a corporation biography series", "rand corporation biography pericles", "rand corporation biography sermons", "rand corporation biography studies"
"rand corporation biography sources" » "rand corporate biography sources", "rand reformation biography sources", "rand federation biography sources", "rand corporation bibliography resources", "said corporation biography sources", "road corporation biography sources", "a corporation biography sources"
"a complete biography series" » "a complete bibliography series", "a college biography series", "a complete digraphs series", "a complete biography pericles", "a complete biography sermons", "a complete biography studies"

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