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

Try widening your search to All Fields.

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