Perhaps you should try some spelling variations:
"protective effects reports" » "protective effect reports", "protective effects report", "protective effects repousse", "protective effects remote"
"collective defect reports" » "collective defence reports", "collective effect reports", "collective defences reports", "collective defect report", "collective direct reports", "collective select reports"

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: (("collective defect reports") OR ("protective effects reports"))*.
• Removing quotes may allow a broader search: (( collective defect reports ) or ( protective effects reports ))*.