Perhaps you should try some spelling variations:
"research white papers" » "research while papers", "research write papers", "research what papers"
"research white paper" » "research while paper", "research write paper", "research what paper"
"research state papers" » "research status papers", "research strategy papers", "research station papers", "research staff papers"
"research late papers" » "research later papers", "research gate papers", "research kate papers", "research late 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 white papers") OR ("research white paper"))) OR ((("research late papers") OR ("research state papers")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"research white papers\") OR (\"research white paper\"))) or (((\"research late papers\") or (\"research state papers\"))))".
• Removing quotes may allow a broader search: (((( research white papers ) OR ( research white paper ))) or ((( research late papers ) or ( research state papers )))).
• Adding a wildcard symbol may retrieve word variants: (((("research white papers") OR ("research white paper"))) or ((("research late papers") or ("research state papers"))))*.