Do flies at the gym. That'll let you grow. But you shouldn't be too worried, it's natural for Asians to have slighter frames, it's just how they genetically developed, I suppose. Could be diet as well, but one of my Asian friends is huge. He looks like Hercules incarnate, so there's hope yet.
Also, your diet in all seriousness could be what is "holding you back," I know it was for me, and I'm white. I'm very broad shouldered though, but you have to restructure your diet, don't eat a lot of garbage food, eating healthy is good, but be sure to include fats that help you grow.
There's nothing like a nice steak after a hard workout.
<----Is about to bbq steak.
Btw, what ethnicity of Asian are you? Japanese, Korean, Chinese, Vietnamese? From what I have observed, the Vietnamese tend to be the slightest, but again, it could be merely diet that is determining this physical outcome.