It might be that nobody from your instance has subscribed to those communities yet, so you might need to force it it the search of your instance, and wait a couple of seconds and search again.
If you search with this format it will force your instance to get that info from the other instance: !community@instance
It might be that nobody from your instance has subscribed to those communities yet, so you might need to force it it the search of your instance, and wait a couple of seconds and search again.
If you search with this format it will force your instance to get that info from the other instance: !community@instance
Thanks, it helped!