I just went to use Google Books (advanced search) and I have been getting restricted or cut down results. For example, a search on "King Arthur" between 1880 and 1924 comes back with only 13 results when obviously the repository contains thousands of books that should fit the criteria. Also, I notice that the format of the results has changed with the appearance of a "Found Inside" box, and only 10 results per page instead of the old 20 per page.
Has Google Books changed? Is there any way to get the old search results back?