KQL on SitePages

We're performing a search query in PnP Modern Search that looks like this:

{searchTerms}

(

Path:https://xxx.sharepoint.com/sites/qm/QMH/Einrichtungen/*

OR Path:https://xxx.sharepoint.com/sites/qmh/QMH%20Lesebibliothek/*

)

The corresponding documents are found.

Now we've extended the query to include SitePages:

{searchTerms}

(

Path:https://xxx.sharepoint.com/sites/qm/QMH/Einrichtungen/*

OR Path:https://xxx.sharepoint.com/sites/qmh/QMH%20Lesebibliothek/*

OR Path:https://xxx.sharepoint.com/sites/QMH/SitePages/* )

Now we should see a few more results, but nothing changes. No pages are found with this query. Does anyone know what the problem is?