it's not about the name spelling

my name is 2 characters but not very common for chinese, but my NC has been pending for 20 months. My wife's name is very common chinese name and you can google out hundreds of it, but her NC got cleared in one month. IMO, your gendre, time staying in the US, education and working background will play some factors, but the biggest factor is your luck, which, unfortunately, is in the hands of FBI, not ours.