I'm not sure because I've deleted Evernote 10 after all these problems and moved to Legacy.
Anyway, no search string was filled in before.
All notes were displayed, I've selected a certain tag which had more than 500 notes and only 17 were displayed.
And every extra trial a different number of notes were displayed, but never the right one...
During the years I spent thousands of hours inserting "all my life" into EN, feeling I found exactly the perfect application - just what I needed!!
Like others, I've recommended EN to my family, friends etc.
Completely trusted EN.
No more.
I gave up.
Looking for an alternative.
Bye Bye EN.