Hi,
There is no option to search the CPT name, it had never been requested before actually. If you want, I can put this up to the requested features list, it should not be too complicated to implement into the upcoming release.
I have logged in again, but I cannot see any real estate post types at the moment. There is absolutely no limitation within the plugin regarding this, it is able to search any custom post type, that is selected under the General Options panel.