Perhaps you should try some spelling variations:
"research white papers" » "research while papers", "research write papers", "research what papers", "research state papers", "research late papers"
"research white paper" » "research while paper", "research write paper", "research what paper"
"research site paper" » "research sites paper", "research scope paper", "research say paper", "research size paper", "research state paper", "research fine paper"

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: (("research site paper") OR ((("research white papers") OR ("research white paper")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"research site paper\") or (((\"research white papers\") OR (\"research white paper\"))))".
• Removing quotes may allow a broader search: (( research site paper ) or ((( research white papers ) OR ( research white paper )))).
• Adding a wildcard symbol may retrieve word variants: (("research site paper") or ((("research white papers") OR ("research white paper"))))*.