Voice control 'learning'

[shep1001]

Have an F10 2015 Lux model. Voice control commands for simple things like names in my phone book or addresses for the nav are comical at times. Saying 'HOME' randomly picks numbers out of my phone book but never my home number. Is there anyway you can calibrate the voice input so it responds accurately or is it generally accepted the voice control is ste and I should only use it for its comedy value of picking random names/destinations just for laughs?