How would I go about searching for a From Nothing Diamond with Dance With Death keystone on it?

"from nothing" in search bar
"allocates Dance with Death" in mods.

Look up the "from nothing diamond"

https://www.pathofexile.com/trade2/search/poe2/Fate%20of%20the%20Vaal/7o4QObnF5

I usually use my phone for trade site. Type in “from nothing” and in filters just type “dancing with death”. Should pop up in results

In the search filters just type in dance with death and it should popup saying passives allocated in radius of dance with death or whatever and it'll show you the from nothings with it

You can't search that on console, you need to use the trade-site, just click the "open trade-site button" on the bottom right, or use a phone.