Talvez debería tentar con algunhas variantes ortográficas:
"chronic fetal failure" » "chronic mental failure", "chronic total failure", "chronic central failure", "chronic metal failure", "chronic metal failures", "chronic metals failure"
"chronic daily failure" » "chronic dams failure", "chronic data failure", "chronic daily fire"
"chronic renal failure" » "chronic real failure"

Try widening your search to Todos os campos.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("chronic renal failure") or ((("chronic fetal failure") or ("chronic daily failure"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("chronic renal failure") OR ((("chronic fetal failure") OR ("chronic daily failure")))).
• Removing quotes may allow a broader search: (( chronic renal failure ) or ((( chronic fetal failure ) or ( chronic daily failure )))).
• Adding a wildcard symbol may retrieve word variants: (("chronic renal failure") or ((("chronic fetal failure") or ("chronic daily failure"))))*.