Turkish for betting sites, bahis siteleri, is the word you would use to find what you were looking for in that language. I learned that when I went to Turkey and wanted to bet on a horse race that was on the television. I thought it would be a fun experience and something that I could say that I did when on vacation. When I discovered that I could bet on a lot more than races, a whole world opened up.
On the television was a horse race. I asked if betting on the races was something that people did there. My friend said he thought so and told me to look up bahis siteleri to see if there were sites to use. I found a site and it had horse racing listed.