Perhaps you should try some spelling variations:
identification experiment » identification measurement, identification assessment, identification treatment
revitalization movement » globalization movement
threat identification » talent identification, direct identification, through identification
renal revitalization » rural revitalization, regional revitalization, renewal revitalisation
first threat » first threads, first three, first great
first renal » first real, first recall, first read

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: (( first threat identification experiment ) OR ( first renal revitalization movement )).
• Adding a wildcard symbol may retrieve word variants: (( first threat identification experiment ) or ( first renal revitalization movement ))*.