Why do you want to leave your current job is quite tricky at first glance. The interviewer asks this question usually out of curiosity. No, they don’t want to know your explicit personal reason. “I can’t stand my boss so I want to leave.” Or “My co-workers don’t understand how to follow simple instructions.” Just avoid all those negative answer entirely. That’s just show immaturity and that you might be seen as the problem employee instead. Well, some interviewer might see sympathize with you, but don’t count on that. They are not there to be your friend, they are there to see if you are fit for the job, then maybe become your friend later on. Just don’t blame anyone on why you leave your job. They aren’t the one getting the new job, you are.