Yes, you are fully right that I did not be careful while printing right result sorry for that. Just now, I tried the code that is in below picture and it works fine with that way.
in the code, as you said I used httpClient.get and .getText() method on response. It returns a text and I convert text to json through json lib in python. In conclusion, result is good. I tried other methods of response value such as .getJson([encoding]) and .json but they showed me the same char problems in the results.
Maybe there can be such a different ways to overcome that problem and it is just one of them. Thanks for all kind support 