Perhaps you should try some spelling variations:
"research while papers" » "research where papers", "research which papers", "research what papers", "research white papers", "research while part", "research while pair"
"research while others" » "research where others", "research which others", "research what others"

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 while papers\") OR (\"research while others\"))".
• Removing quotes may allow a broader search: (( research while papers ) OR ( research while others )).
• Adding a wildcard symbol may retrieve word variants: (("research while papers") OR ("research while others"))*.