Perhaps you should try some spelling variations:
"CADTH rapid response regulation: summary with critical appraisal" » "CADTH rapid response evaluation: summary with critical appraisal", "CADTH rapid response generation: summary with critical appraisal"
"cadth rapid responses reporting: summary with critical appraisal" » "cadth rapid response reporting: summary with critical appraisal", "cadth rapid responses porting: summary with critical appraisal", "cadth rapid responses responding: summary with critical appraisal", "cadth rapid responses recenting: summary with critical appraisal", "cadth rapid responses remoteing: summary with critical appraisal", "cadth based responses reporting: summary with critical appraisal", "cadth related responses reporting: summary with critical appraisal", "health rapid responses reporting: summary with critical appraisal"
"CADTH rapid response resulting: summary with critical appraisal" » "CADTH rapid response testing: summary with critical appraisal", "CADTH rapid response results: summary with critical appraisal", "CADTH rapid response reduction: summary with critical appraisal"
"cadth rapid responses report: summary with critical appraisal" » "cadth rapid response report: summary with critical appraisal", "cadth rapid responses recent: summary with critical appraisal", "cadth rapid responses remote: summary with critical appraisal", "cadth based responses report: summary with critical appraisal", "cadth related responses report: summary with critical appraisal", "health rapid responses report: summary with critical appraisal"

Try widening your search to All Fields.

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: (((((("CADTH rapid response resulting: summary with critical appraisal") OR ("CADTH rapid response regulation: summary with critical appraisal"))) OR ("cadth rapid responses reporting: summary with critical appraisal"))) OR ("cadth rapid responses report: summary with critical appraisal")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"CADTH rapid response resulting: summary with critical appraisal\") OR (\"CADTH rapid response regulation: summary with critical appraisal\"))) or (\"cadth rapid responses reporting: summary with critical appraisal\"))) or (\"cadth rapid responses report: summary with critical appraisal\"))".
• Removing quotes may allow a broader search: (((((( CADTH rapid response resulting: summary with critical appraisal ) OR ( CADTH rapid response regulation: summary with critical appraisal ))) or ( cadth rapid responses reporting: summary with critical appraisal ))) or ( cadth rapid responses report: summary with critical appraisal )).
• Adding a wildcard symbol may retrieve word variants: (((((("CADTH rapid response resulting: summary with critical appraisal") OR ("CADTH rapid response regulation: summary with critical appraisal"))) or ("cadth rapid responses reporting: summary with critical appraisal"))) or ("cadth rapid responses report: summary with critical appraisal"))*.