Here are a few suggestions to help troubleshoot and potentially fix the issue:
Ensure Proper Language Support: Make sure that the device or emulator you are using supports Turkish for speech recognition. If the device defaults to English, it may affect the recognition results.
Check Permissions: Ensure that your application has the necessary permissions to access the microphone and perform speech recognition. You may need to declare these in your app manifest.
Debugging Output: Add logging or debugging output to verify that the options are being set correctly. It may help to print out the culture being used before starting the recognition.