I also have the experience that search terms act more like suggestions unless they are placed in quotes.
When I search for "debian opencontainer image", the first result does not contain the string "debian" on the page or in the source, and the second result does not contain the word "opencontainer":
If I turn off the selected region, the first two results' pages do not contain the string "opencontainer" on the page itself or in the page source:
They do contain both the words "debian" and "image", obviously far more common search terms. I anthropomorphize this as "Kagi ignores search terms it finds inconvenient." To be clear, Google does that too, but experientially for me it feels like it does it less, while DuckDuckGo ignores inconvenient terms even more than Kagi, in my subjective experience.
I think we just have to add quotes around terms we want to be required in the result.
