I have a website with the url www.miblog.com
When creating a page, the url would bewww.miblog.com/pagina
Is there a way for me to add more elements "inside" that page?
Just as they look in the categories. Example: create another page and the url looks: www.miblog.com/pagina/pagina2
And create another page and see:www.miblog.com/pagina/pagina2/pagina3
When creating a page in wordpress in the "Page Attributes" you can select A top page, when you do that, the url of the page will be www.myblog.com/top-page/created-page.
In order to see the name of the page and not rare characters you have to modify the permalinks in "Options / Permalinks" and select "Entry name"
https://codex.wordpress.org/Using_Permalinks