Either Apple's search is awful or I'm messing up?
This problem has been consistent from the iPhone 6 through the XR and the intervening OS's.
I periodically request an email from our library system that lists a brief of each book in my reading history. I use the list to confirm I haven't read a book before checking one out if I'm not sure I hadn't previously done so.
It's no problem for me to open the email in MS Outlook and use the email form's search function.
However, if I open the email on the phone, flick down to expose the search box, regardless of what I enter the iOS search has NEVER returned the search word despite being confirmed that the word is present using OL.
The library email lives in its own folder \Inbox\Filed\Library.
?
Mark
iPhone XR, 12