Perhaps you should try some spelling variations:
"CADTH correlated responses recent: summary with critical appraisal" » "CADTH related responses recent: summary with critical appraisal", "CADTH related response recent: summary with critical appraisal", "CADTH delayed responses recent: summary with critical appraisal", "CADTH correlated responses role: summary with critical appraisal"
cadth correlated » code correlated, depth correlated, fast correlated
"cadth rapid responses report: summary with critical appraisal" » "cadth rapid responses reporting: summary with critical appraisal", "cadth rapid responses remote: summary with critical appraisal", "cadth rapid responses return: summary with critical appraisal", "cadth api responses report: 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"
"CADTH corporate responses recent: summary with critical appraisal" » "CADTH corporate responses role: summary with critical appraisal"
"cadth rapid response report: summary with critical appraisal" » "cadth rapid response depot: summary with critical appraisal", "cadth rapid response reporting: summary with critical appraisal", "cadth rapid response support: summary with critical appraisal", "health rapid response report: summary with critical appraisal"
cadth corporate » cash corporate, both corporate, myth corporate

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