Struggling to change the text of a button

I have done it with one button and it worked fine. Now I’m trying another. I think this is the text that relates:

<input type=”submit” value=”<?php echo esc_attr_x( ‘Find Listings’, ‘main box’, ‘business-directory-plugin’ ); ?>” /><br />

So the…

Original string = Find Listings
Text domain: business-directory-plugin (This is what worked with the other one that I tried. And it’s the same plugin).
Text context: [blank]
Replacement string: MY NEW WORDS HERE

But it doesn’t work. Am I looking at the wrong thing?