Lost baggage

Don't ever travell Turkish airlines ,coming from Iran to Istanboul and then Paris on 21/04/2012 ,I had delayed 5 hours without no information and thanks God I was in business to be able to use their lunge . It took me 16h for a direct flight . Then got to the Paris airport to realize my one bag is missing , with most of my clothes and since then I spend money on clothes and calling everywhere try to traice my luggage with no success . I travelled to many countries ,and the worth airlines and airport to me is Ataturk airport and Turkish airlines .