OK...try searching for Csardas as well as Czardas.
Son Viohazard listened to several versions. The Lakatos version is not exactly according to the sheet music, but a MUST to listen to, I think!
Ruggiero Ricci has a recorded version.
We also have a recorded version of Ferenc Santa (Hungarian), but there is a freer version of him playing it on youtube
here. You have to wait at least a minute into the recording for him to find his way to the accepted beginning of the piece

and the recording is spotty. Still worth listening to - that man's bowing is lighter than a Hungarian pastry. Make sure you play with a big Ferenc smile on your face in your exam, anyway!
I think
this guy (Josef Lendvay) has a very trad Hungarian take on the Csardas.
Spelt Czardash just to help hide it on youtube,
this recording with Vengerov and violin and an army of contrabasses is worth listening to as an accomplished classical rendition. Listen out for the portamenti (not too much, not too little) and the "bite" (dunno what it's called) at the beginning of notes in some accented passages....of course, you'd want to take the ending a bit faster than Vengerov does (

joke).