There's currently no way to change this except hacking some core files and without loosing changes after an update..
If you still wish to proceed,
Open system/tastyigniter/libraries/Location.php, find the below block of code around line 768, it should look like
$this->geocode = array(
'search_query' => $search_query,
'lat' => $output->results[0]->geometry->location->lat,
'lng' => $output->results[0]->geometry->location->lng
);
Change this to
$this->geocode = array(
'search_query' => $output->results[0]->formatted_add,
'lat' => $output->results[0]->geometry->location->lat,
'lng' => $output->results[0]->geometry->location->lng
);
