Indexing is the process of adding webpages into Google search. Depending upon which meta tag you used (index or NO-index), Google will crawl and index your pages. When you upload content to the Issuu platform, your content is also being indexed into Google search (with the exception of unlisted content).
Once you've deleted your publication from issuu, it takes a few days for search engines like Google to remove link from their cache.
We, unfortunately, have no control over when the cache from the search engines will be removed.We recommend waiting a few days to see whether the link to your content is still live. If it is, please contact Google directly as they will be able to help or via their "Right to be Forgotten" form, which is also available for EU citizens and citizens of Argentina.
The form is located here.
You could also use a service like forget me.
Finally, you can learn more about the “Right to be forgotten” concept here.