Pretty easy.
In my case i made a passworded archive that i hid with a completely random name and put it in appdata where searches don't even show up. I made a folder called "miscdata" which, knowing my family, wouldn't be out of place at all. But you'd better remember the password. I made that mistake before and lost some good pr0nz
In your case you could just make a folder and make it hidden along with its contents which i'm pretty sure also hides it from searches. But what i'm sure will work is if you just hide individual files in your search results. Worked for me before.