Perhaps you should try some spelling variations:
research while » research where, research which, research what
research sope » research scope, research some, research sops
while papers » white papers, while others, while part
sope paper » same paper, wove 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 sope paper ) OR ( research while papers )).
• Adding a wildcard symbol may retrieve word variants: (( research sope paper ) or ( research while papers ))*.