Broader identification functionalities have also been added: Restrict/broaden bass note identification, and partial chord note search.
You may also try our Ultimate Chord Finder that lets you find chords using music scales and harmonized chords as constrains.
Instructions:
Do not repeat the same note twice.
In the combo boxes (below) select the notes you know.
The note's order is not important (except for the bass note, if the 1st checkbox is checked).
If you don't care to determine which the bass note is, then uncheck the 1st checkbox.
If you want a broader identification of results, allow chords with all of these notes and maybe some other notes also, then uncheck the 2nd checkbox.