Changing the # of results per page in Google search settings displays totally different results. Why is this?

[ByteLaunch]

Curious what's going on here. This is the first time I've seen this before. What's happening is this ...

1. In Google, I search for "mobile apps orange county" and get a standard list of 10 results.
2. I go to Google's search settings in the top right corner of the page (button is grey with a gear) to change the number of results per page from 10 to 50 (also did 100).
3. When I go back to Google and search again for "mobile apps orange county" I get a much larger list but with completely different results. This time around the top 10-12 are dominated by the same website (ocregister.com)

What's going on here that Google would now show different results? Why is this one website all of a sudden dominating the first 12 results?

Thanks everyone!

ByteLaunch

[KeriMorgret]

I believe this has to do with how Google groups things. A few years back people talked about using this trick in reverse by changing num=10 to num=9, num=8, etc. If the first result had two domains, one that was indented, the second indented result might actually be at result 10, but since they were from the same domain, they were grouped together. If it was result 10, and you should just nine results, suddenly you'd see that "second" place link disappear.

My guess is this is what's happening here. Some of those results are in places 11-50 and showing up in the indented results.