Perhaps you should try some spelling variations:
"research scoping paper" » "research coping paper", "research scoring paper", "research shopping paper", "research scoping chapter"
"research what papers" » "research what hampers", "research what players", "research what pages"

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