Here are data from Google on how often is given term searched.
Term : Nobel Prize - People care what kind of prize Obama won
Term : Nobel Prize money - They care even more how much money he actually won
Term : Obama charity - But what they care most for is what the hell is he gonna do with that money
For the last graph: I was looking at some random combinations of the term "Obama" + "word"(for example: Obama radio, Obama car, Obama underpants) and they've increased as well after the Nobel Peace Prize announcement, but by a magnitude less than "Obama Charity".