Change "No Search Results" message

Great plug-in, nice job on it!

I’m trying to edit the message “No Results Found” to include our phone number for support. I edited lines 136 and 732 from sl-fucntions.php file, but I get the same message “No Results Found” if no dealers are found on the map.
Can you please let me know how to change that message?

Thanks a lot.
Mike

https://www.ads-software.com/plugins/store-locator/