Perhaps you should try some spelling variations:
"rand corporation biography series" » "rand reformation biography series", "rand federation biography series", "rand corporate geography series", "said corporation biography series", "road corporation biography series", "a corporation biography series", "rand corporation biography pericles", "rand corporation biography sermons", "rand corporation biography herve"
"a corporate biography series" » "a corporate geography series", "a corporate demography series", "a complete biography series", "a corporate biography pericles", "a corporate biography sermons", "a corporate biography herve"
"a corporate biography studies" » "a corporate geography studies", "a corporate demography studies", "a complete biography studies", "a corporate angiography studies", "a corporate radiography studies", "a corporate tomography studies"
"a corporate biography sources" » "a corporate geography sources", "a corporate demography sources", "a complete biography sources", "a corporate bibliography resources"

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 ((((("a corporate biography series") OR ("a corporate biography studies"))) OR ("a corporate biography sources"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"rand corporation biography series\") or (((((\"a corporate biography series\") OR (\"a corporate biography studies\"))) or (\"a corporate biography sources\"))))*".
• Removing quotes may allow a broader search: (( rand corporation biography series ) or ((((( a corporate biography series ) OR ( a corporate biography studies ))) or ( a corporate biography sources ))))*.