Perhaps you should try some spelling variations:
"research white papers" » "research while papers", "research write papers", "research what papers", "research white paper", "research state papers"
"research late papers" » "research later papers", "research gate papers", "research kate papers", "research late paper", "research state papers"
"research why papers" » "research what papers", "research work papers", "research why paper", "research key papers", "research day papers"

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 late papers"))) OR ("research why papers")).
• Removing quotes may allow a broader search: (((( research white papers ) or ( research late papers ))) or ( research why papers )).
• Adding a wildcard symbol may retrieve word variants: (((("research white papers") or ("research late papers"))) or ("research why papers"))*.