Please add "OR" operator, so we could search for e.g. "webkit OR gecko OR blink" in a single query.

hn.algolia.com can't do "or" so just the normal stuff for search would be a good start. https://hn.algolia.com/help

The date chooser on hn.algolia.com is also broken but a very handy setting.

And I just saw why search always brings up wrong stuff "typo-tolerance" is default on - https://hn.algolia.com/settings

I have been to the settings, but it's a good example of why defaults matter and on-screen really helps people.

And extra crazy with "typo-tolerance" ON, "optimized" and "optimised" are very different results. Which is technically true, that is not a typo, that's grammatical.

Filter by author is important as people use that to search their own stuff.