How to search poe trade for flat elemental damage?

I am trying to figure out how to search for flat added elemental damage on wands. I put in the wand type and have tried all of the # to # added lightning damage options for attacks or local etc etc but it either gives me no results or it gives me some weird average of the implicit in gray that isn't actual a prefix or suffix on the item. I do not understand why the trade thing is so completely complicated to search with! Why can't I just say I want tornado wand with lightning and go lol. Appreciate anyone's help with this! I am struggling so hard with finding anything specific.

https://www.pathofexile.com/trade/search/sony/Mirage/pJYPBoRZu0

I hope the link is working. If have already searched for added damage (Local), you should find something. Added flat elemental damage on weapon types is always local.
And you can type the specific basetype you want up in the searchbar.