Perhaps you should try some spelling variations:
"research written paper" » "research within paper", "research writing paper", "research twitter paper", "research written after"
"research write paper" » "research site paper", "research waste paper", "research grit paper", "research white paper", "research writing paper"
"research while paper" » "research where paper", "research which paper", "research what paper", "research white paper", "research while pair", "research while chapter"
"research white papers" » "research what papers", "research where papers", "research site papers", "research white paper", "research state 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 write paper") OR ("research while paper"))) OR ("research white papers"))) OR ("research written paper")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"research write paper\") OR (\"research while paper\"))) or (\"research white papers\"))) or (\"research written paper\"))".
• Removing quotes may allow a broader search: (((((( research write paper ) OR ( research while paper ))) or ( research white papers ))) or ( research written paper )).
• Adding a wildcard symbol may retrieve word variants: (((((("research write paper") OR ("research while paper"))) or ("research white papers"))) or ("research written paper"))*.