We'd love to have you bring some domains to us. However, we do not offer all extensions. There are various reasons for this. Sometimes it's based on the demand or interest in an extension, sometimes a specific registry partner has unusual terms and conditions or there are legal restrictions (on some country codes). The best way to see if the extension is available is to do a search like you did.
Sorry it didn't work out this time, we appreciate the attempt. Please try us again with other domains.