Under the box on the righthand side there's a link with the text "See more on Stock Overflow"

Obviously a just small typo but I suppose I'm surprised this text was typed by a human in the first place. FWIW it's spelled correctly just above.

>See more on Stock Overflow

In a just world this would redirect you to the Seasoned Advice Stackexchange [1]

[1] https://cooking.stackexchange.com/

Good eye, thank you. It is fixed.

Every "Deep Search" is manually tuned and added as a search within the search, and each one is slightly different depending on the type of information that data source returns.