Search isn't showing all notes

Hi!

When I use the big search button at the top-right on my microsoft Dynamics 2016 on-premises and search for notes it doesn't search for all notes.

So I enter the account's name "test" and it shows me the notes that are under projects related to the account "test". But it's not showing me any notes that are in the notes of the "test" account itself.

I was searching in the note entity itself to see if a filter was placed somewhere but there is nothing.

Anyone who has an idea on how I get to show the notes of the account together with the notes of the account's projects?

Kind regards