I have been noticing more sites with this sort of result. I was doing some digging on this and was only able to find out that "perhaps" the reason for this was being an authority site and its most visited pages or that it was just how many indented results the site has. I was wondering if anyone had a concrete answer as to why a site would get 4 indented results and also a 2nd result for the site at #2. The keyword I was researching was "pool sticks". Notice the result at the top with 4 indented results under it and then their actual indented result underneath at #2. I did some research and their actual indented result comes in at #5. The others in the mini list are not even all in top 100 for the term. Is there some way to get this type of result for any site that has a top listing? I feel that my flagship site should have this type of result as I am top for over 50 keywords, yet do not have this type of result. Any info would be helpful as this sort of result would be great. Thanks
They're called "sitelinks" and Google provides these listings based on authority and site structure. The Google explanation says that the process is automated, so you'd have to compare your site structure to the site which has them to see what changes to make. My guess is it has a lot to do with deep links to inner pages. If you have several high-ranking inners pages, the algorithm generates sitelinks to aid in navigation.
I have some indented results but not at #1. It's if Google finds two of your pages optimized for the same term and it believes both are relevant. Like if I write an article with 2 parts and very similar page titles they usually appear together in the SERPs.