Perhaps you should try some spelling variations:
"stephen colbert" » "stephen robert", "stephen roberts", "stephen herbert", "stephen jolbert", "stephen aolbert", "stephen dolbert"
"stephen clark" » "stephen chan", "stephen crane", "stephen jlark", "stephen alark", "stephen dlark"
"stephen cook" » "stephen john", "stephen k", "stephen chan", "stephen jook", "stephen aook", "stephen dook"
"stephen c" » "stephen j", "stephen a", "stephen d"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("stephen colbert") or ((((("stephen cook") OR ("stephen clark"))) or ("stephen c"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("stephen colbert") OR ((((("stephen cook") OR ("stephen clark"))) OR ("stephen c")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"stephen colbert\") or (((((\"stephen cook\") OR (\"stephen clark\"))) or (\"stephen c\"))))".
• Removing quotes may allow a broader search: (( stephen colbert ) or ((((( stephen cook ) OR ( stephen clark ))) or ( stephen c )))).
• Adding a wildcard symbol may retrieve word variants: (("stephen colbert") or ((((("stephen cook") OR ("stephen clark"))) or ("stephen c"))))*.