I hope you are well today and thank you for your question.
It seems from your shared screenshot that the page contains “Posidonia” word so could you please try searching the “Posidonia”?
Also, Could you please share your site URL where it’s happening so I can troubleshoot it?
Best regards,
Sorry please see here: https://app.screencast.com/CIwCDYob0eFql
I can see some page content are not searchable such as “OUT & ABOUT WITH QMI” but some are searchable such as “Privacy Policy” page content.
Have you used any page builder to create pages such as “OUT & ABOUT WITH QMI” that use shortcodes to display content?
We have used Oxygen Builder, but I have not used any shortcodes specifically.
Please note that any content in pages that are designed using the Oxygen editor are not searchable with the WordPress search form.
Please contact Oxygen Builder support to resolve it.
Ok I will ask them why. And maybe look for an alternate search plugin.