They had indeed been searching books for Flamel’s name ever since Hagrid had let it slip, because how else were they going to find out what Snape was trying to steal? The trouble was, it was very hard to know where to begin, not knowing what Flamel might have done to get himself into a book. He wasn’t in Great Wizards of the Twentieth Century, or Notable Magical Names of Our Time; he was missing, too, from Important Modern Magical Discoveries, and A Study of Recent Developments in Wizardry. And then, of course, there was the sheer size of the library; tens of thousands of books; thousands of shelves; hundreds of narrow rows.
So real life is now better than magic, eh? If they’d been muggles in 2010, all they’d need to do is type ‘Nicholas Flame’ and press enter!