Sure you could read any book ever printed in the English language in the local library. They might have to get it in from the national collection or the big library in the city. But you ain't going to see every book in the local library. There is more than you could wish for and you will never read every book in the local library. But all the classics are there, the talked about new books are there (or out on loan, back soon). All the reference books that school kids are there, there is enough to get you started in any hobby.

Google search results are like that. Those 880,000 'titles' are a bit like the Library of Congress boasting how big it is, it is just a number. All they have really got for you is a small selection that is good enough for 99% of people 99% of the time. Only new stuff by people with Page rank (books with publishers) get indexed now and put into the 'main collection'.

Much like how public libraries do have book sales, Google do let a lot of the 880,000 results drop off.

It's a ruse!