That's not a simple hard filter but changes what types of results are more or less preferred.
You are replying on someone explaining lenses which is something google had something similar in the past when they allowed power users to control search.
https://help.kagi.com/kagi/features/lenses.html
https://blog.kagi.com/small-web
But really, this is 2024. I shouldn't have to manually enumerate things in Google to get it to spit out serviceable results.
And the above nudges are pretty blunt force, compared to how much more it used to respect exact keywords.
That's not a simple hard filter but changes what types of results are more or less preferred.