Configuring views to display all book-pages inside a book, from whenever you are inside the book
I did found the reason why it not work (as it should), it's probably a bug at the "filter criteria", who not where working with setting of Book depth. 
I am lucky because I had different content-types on each level of the book.
And when trash away the book depth filter criteria  I could set filtering on the Content type instaed, and all works out as I wanted.
So this problem is solved,now I can display all book-pages inside a book, from whenever you are inside the book without any problem.