Perhaps you should try some spelling variations:
"research write paper" » "research written paper", "research site paper", "research waste paper", "research writing paper"
"research white paper" » "research while paper", "research what paper", "research site paper"
"research white papers" » "research while papers", "research what papers", "research site papers", "research state papers"
"research why papers" » "research what papers", "research work papers", "research why paper", "research key papers", "research day papers"

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