Find fails to find at least one of my emails

I tried to find an email and the Find tool completely misses it. I am looking in all folder and for anything with the subject “NDAC” in the subject. I have also tried searches on the body, subject , sender, recipients. The subject is “NDAC - Return to Shooting, Phase 1”. It is in the inbox of one of my email accounts.  Very confused about how it missed the email.

I have never had good luck with just entering a text string in the search box.  I always use a keyword, e.g., text:NDAC or text:*NDAC*.  The wildcards ("*") will make sure you get NDAC even if it has characters adjacent, like NDAC-.

To see the keywords available, type a ? in the search box