Below is a query that worked better in DuckDuckGo than Kagi:
jenkins wsl "The process cannot access the file because it is being used by another process."
With DDG, it showed results from https://github.com/microsoft/WSL, which could be relevant.
Kagi doesn't find that.
In this case, the issue might be that it's just not in Kagi's index. Mentioning it because WSL is something I use, I'd like to boost https://github.com/microsoft but not necessarily all of github.com.