hi iam an iraqi dentist i want to settle in chezh for about 2 years
i want a residency there for in anyway (working study) the most important it be a long term visa Every 1 year.
so what shall i do?

That's a very good question. The best to start with is you embassy. I know that you can only get a long-term visa If you have a possibility to life in Czech with using there social care. So how you want to do that?