Filter search with Meta Query not working

Using the filter search:

I have a custom post type with a text area field. I want the search (using Bricks Filter Earth) to display posts where the user’s search term matches any word in this field. I’ve set up a Meta Query as shown in the screenshot, but it doesn’t work. Do you have any suggestions?

Also, how can I hide the pagination widget until a user enters a search term in the input field? what are the settings for the condition?
Thanks