How to Add Search UI and show results in a landing page

How to just launch a portal/landing page, user will click on an option and it will launch a search window or section like prior to consetalltion and, when user hit search it will show the results from the D page or RD directly , we dont want to create a case for this. thanks

It sounds like the mechanism you might want is Insights, perhaps configured with promoted filters to provide a specific “search” interface.

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