I tryed to register Keyword IDN from a drop, But i cant figure out the language E.g: sex©.com IDN cant register with english
Why would you want to reg a name like the above? Why not reg a proper meaning IDN word in a language that supports IDNs?
Lol, the problem is with your username. It include some bad word "SEX". You know the solution yourself.
Sex is not a bad word and there are thousands of .com domains with "sex" in the name, as you well know. The problem is with the © character, and some brain-dead algorithm that thinks it knows what people want to do with English. I am not sure but I believe different registrars have different algorithms for determining which characters are acceptable. It's worth trying to register it somewhere else.
OK, I get your point. Please do some research and if you get good registrar then inform me about them.