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