If you think she only did it for the money, you haven't even 'scratched the surface'. [=there are many other factors, reasons, etc., involved]
Despite the 'surface' differences between the two candidates, they are very similar in most ways.
The tension between them is beginning to 'rise to the surface'. [=it is becoming easy to see]
(..) Look here. We know the victim's head was driven into his own sink. However, what you failed to do was closely examine the posterior surface of the skull for any damage due to a forward thrusting blow. And as you can see, there is (..)2016 TvShow: Bones Title: The Fight in the Fixer Season: 11 Episode 15
(..) So the blunt force object that bludgeoned the victim in the face is made of wood. Dr. Brennan, I found distinct remodeling on the lateral surface of the victim's left proximal tibia. This damage appears to have been inflicted approximately one year ago. I'll inform Booth so he can (..)2016 TvShow: Bones Title: The Fight in the Fixer Season: 11 Episode 15