don´t display only 2 cities in the near search

Hello

I found a problem that appens only in two cities that i put in my directory, the rest of them works perfectly.
Gives me this error: “No listings found which match your selection.” and “No Records Found. Sorry, no record were found. Please adjust your search criteria and try again.”

Please try it to see in: http://spotter.radioutopia.pt
if you put on the search field “Perto”, the city “Lagos” or “Faro” don´t work, if you put for example “Sagres”, “Portimão” or “Lagoa” works perfectly.

What can i do for resolve this?

thanks for your time