Hello,
Generally speaking, from https://wpgeodirectory.com/docs/gd-search/#near
The default GD search is not an IN search, but a search NEAR THE CENTER OF
So the search for dentists near ‘springvale’ is a search for dentists within the default ‘near’ limit (40 for this site) from the center of the location matched with ‘springvale’.
In the case of this site, there was an issue with the permalinks, that ‘show full location in URL’ was selected but the first checkbox was not selected, so the URL was incomplete.
Try your search again and see if the results are improved.
At this time, the listings results on the search page do not appear to contain a link to the listing detail page and are missing some information. This would seem to be an issue with mixed content / CORS errors in the console.
Your site needs all images and resources to run from https. Please try the ‘better search replace’ plugin to update http links to https in your database. That should fix the issues on the search page, but if not write back and let us know.