It's just instant motions with no space in between. When you do the 2C,5B,2B jump cancel immediately. The more you practice it, the better your timing will be. Also it's jB,jC, the second jump should be 9 then instant jB,jC,Airthrow. I just think your timing might be a little off, since Miyako is a little faster with her combos than other characters.