Perhaps you should try some spelling variations:
"research state papers" » "research status papers", "research strategy papers", "research station papers", "research staff papers"
"research late papers" » "research later papers", "research gate papers", "research large papers", "research late paper", "research white papers"
"research kate papers" » "research katie papers", "research gate papers", "research kati papers", "research later papers", "research waste papers", "research late 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 state papers") OR ((("research late papers") OR ("research kate papers")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"research state papers\") or (((\"research late papers\") OR (\"research kate papers\"))))".
• Removing quotes may allow a broader search: (( research state papers ) or ((( research late papers ) OR ( research kate papers )))).
• Adding a wildcard symbol may retrieve word variants: (("research state papers") or ((("research late papers") OR ("research kate papers"))))*.