Perhaps you should try some spelling variations:
"research written paper" » "research within paper", "research writing paper", "research twitter paper"
"research written after" » "research within after", "research writing after", "research twitter after"
"research write paper" » "research white paper", "research site paper", "research waste paper", "research white papers"
"research what papers" » "research what hampers", "research what players", "research what pages"

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