How do I customize my 404 page with similar results?

Hello,

I don’t know if this is a theme option, but I wanted to ask.

I want to make a personalized 404 page for my website.

I want it to include:

– Web search bar
– Link to the home page
– Articles related to 404 search / error (this is important) For example, if someone searches for “plant mushrooms”, and gets a 404 error, let them get related suggestions from my content, like for example “plant trees”. , “planting sunflowers” etc…

Is it possible to do this?

Thanks