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 white paper", "research site paper", "research waste paper", "research white papers"

You may be able to get more results by adjusting your search query.

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