I need help making premade stock or broth way stronger in flavor

I have been using Top Ramen packets to make broth. That is the flavor and strength of flavor I'm looking for. I'm trying to get away from these. I also have been going to a Japanese restaurant where the broth is amazing. At first I thought it was Dashi from online research, but once I made that it wasn't even close. It's definitely not Dashi. I went back and asked today and the waiter said it was chicken soup. I've included a picture if anyone has any idea if this is correct or not. http://i.imgur.com/LKF5Bvw.jpg

I basically want to take premade chicken broth or stock and make it way stronger in flavor. What should I add and how should I prepare it?

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