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 while paper", "research white paper", "research writing paper"
"research white papers" » "research while papers", "research what papers", "research where 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"

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