(weird that only 8 pages are returned out of 3.2 million results but that's another subject)
Not weird, just a combination of intentional policy and well-attested inability to count. "Showing 16-25 of 13 results", that kind of thing. How this fits in with the ability to produce fiendishly complicated algorithms... now that
is another subject.
Hasn't everyone tried this? Do a search. Any search. Move to another page. Buried deep in the query string you will now find the "start=n" element. Change it manually to anything. Go too high-- any number that will bring the total past 1000-- and you get
Sorry, Google does not serve more than 1000 results for any query. (You asked for results starting from {number}.)
... followed by the "Your search did not match any documents" boilerplate.
Conversely, pick a number that will put your last item at 999, and the results will
always peter out before reaching the bottom of the page. I am currently looking (with prefs at 30/page) at
Page 29 of about 4,040,000,000 results
...
In order to show you the most relevant results, we have omitted some entries very similar to the 839 already displayed.
The calculator confirms what my brain has already told me: 30x28>839. At 30 hits/page, there shouldn't be
anything on this page.
Further jiggery-pokery similarly confirms that "more than 1000" means "=> 1000".
You can force them to cough up the full thousand-- or rather, the full 999-- by "repeating the search with omitted terms included".
But that gets senseless. If the only way to get to a thousand is to count results that are so similar, g### would prefer not even to show them, what's on those other 4,039,999,001 pages?