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 agrestaro" » "Cardiac arrestado", "Cardiac arrestar", "Cardiac aprestar"

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