Perhaps you should try some spelling variations:
rapid responses » rapid response, based responses, related responses
search rapid » research rapid, search rapidly, search apis
death rapid » health rapid, death repair
search api » search a

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: (( ((search rapid) OR (search api)) responders depot: summary with critical appraisal ) OR ( death rapid responses report: summary with critical appraisal )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((search rapid) OR (search api)) responders depot: summary with critical appraisal ) or ( death rapid responses report: summary with critical appraisal ))".
• Adding a wildcard symbol may retrieve word variants: (( ((search rapid) OR (search api)) responders depot: summary with critical appraisal ) or ( death rapid responses report: summary with critical appraisal ))*.