How do you remove tweets from Google search?

I had a twitter public account which I then changed to private and then changed my name, well the tweets are still coming up in google when I search my name however clicking on the link goes to a page %26#039;Sorry this Page doesn%26#039;t exist%26#039;. Is it possible to remove them from Google search index??|||this is a awesome question and i hope you get the correct answer as im have the same problem...|||WHY.?