Unexisting documents in search results

Hi, in my search results (in SharePoint Online) I have 2 documents that do not exist anymore. When I click on the search result link, it is obviously unable to locate the document. I'm site collection admin, I've emptied the user and admin recycle bin, see if the documents where not in the "no checked in version". I have reindex the library and the site. Documents are still showing in search results after a week.

Any suggestions?