Ask HN: Search use cases no longer / poorly supported by search engines?

Hi HN,

I've been ruminating on the sad state of the Web's search infrastructure over the holidays. I'd love to hear which of your search use cases is no longer and/or poorly supported by the surviving search engines.

I'm aware of:

- searching for academic papers is getting increasingly difficult on Google

- Bing seems to be the only search engine left with an API, and it isn't cheap

- few fine-grained search operations are still supported by Google

- Google's widget to provide search for your own site looks increasingly like an inconvenient afterthought