Perhaps you should try some spelling variations:
"research status papers" » "research strategy papers", "research studies papers", "research status paper", "research state papers", "research states paper"
"research site paper" » "research sites paper", "research scope paper", "research science paper", "research size paper", "research white paper", "research state paper"
"research say paper" » "research day paper", "research assay paper", "research my paper"

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