Perhaps you should try some spelling variations:
"Cardiac arrest" » "Cardiac arrese", "Cardiac agrest", "Cardiac arrestar"
"Cardiac arresto" » "Cardiac arreseo", "Cardiac agresto", "Cardiac arrestaro"
"Cardiac arrestaro" » "Cardiac arresearo", "Cardiac agrestaro", "Cardiac arrestararo", "Cardiac arrestado", "Cardiac arrestar", "Cardiac arrestados"
"Cardiac arreseo" » "Cardiac arrese", "Cardiac arrested"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("Cardiac arrest") OR ((((("Cardiac arresto") OR ("Cardiac arrestaro"))) OR ("Cardiac arreseo"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Cardiac arrest\") OR (((((\"Cardiac arresto\") OR (\"Cardiac arrestaro\"))) OR (\"Cardiac arreseo\"))))".
• Removing quotes may allow a broader search: (( Cardiac arrest ) OR ((((( Cardiac arresto ) OR ( Cardiac arrestaro ))) OR ( Cardiac arreseo )))).
• Adding a wildcard symbol may retrieve word variants: (("Cardiac arrest") OR ((((("Cardiac arresto") OR ("Cardiac arrestaro"))) OR ("Cardiac arreseo"))))*.