Likely a transliteration of a Japanese name, try alternative spellings if searches not turning up much.

"Tama no Hada" (Pearl Complexion) Satsuke evergreen, white with deep pink stripes, occasional strong to deep selfs and white margins.

Here is a link that might be useful: Azalea Society of America

ASA site (link, above) gives Galle as reference. I looked there earlier, but didn't make connection with

'Tama no Hada' [Pearl complexion]: white with deep pink stripes, occasional strong to deep pink selfs and white margins, wide round lobes, 4-5"

under Satsuki Hybrids.

here is a photo of the one mentioned above.
might be hard to locate but having the correct name should help you in your search.

Here is a link that might be useful: azalea society's photo galleries

There's actually a pretty large number of commercial sites offering it, mostly wholesale which suggests it may be fairly easy to find in garden centers in season - where adapted. Florida may be too far south for Satsuki Hybrids, I don't know.