I do not get this screen. I get the following which does not have a search box.
There must be something in your browser setting blocking the menu bar.
Are you using a MAC / PC ?
What web browser are you using?
What version ?
What operation system?
Google "portals site:forums.filemaker.com"
You can restrict any Google Search (or other search engines) to a specific website with "site:some.thing.com"
I am on a Mac 10.91 using Safari. I notice that the search does mapper on Firefox.