Notes - sort order and search

I have migrated all my notes to the new version of mail. But it is now difficult to find the note I am looking for.

The notes seem to display in a random order. Something I wrote 11 minutes ago is between items that are several months old.

(1) Is there any way to change the sorting order?

(2) Is there a way to search in notes?

(3) There is no "Save" button. Do notes save automatically?

Thanks, Bob