せん無し
かい無し
It is not worth doing―unavailing―of no avail―to do something in vain―to no purpose―to no effect―to no avail―without avail―without effect―without success.
差分なし
to reveal the trick―show one's hand
症状なし
without specificity
without branches
to be faultless―perfect―ideal―satisfactory―unexceptionable―unimpeachable―above reproach―all that one can desire―all that can be desired―everything a person or thing should be―as it should be―to leave nothing to be desired
They make no difference