It looks like Samsung fixed the search problem in a new kind of update for the Galaxy S III.
Samsung removed the search function in firmware update I9300XXBLG6. (patent apple???)
But since today BTU Open United Kingdom Galaxy S III owners are able to update their Galaxy S III device to firmware I9300XXBLG8.
This update brings back the search function to your Galaxy S III.
You can update your device by OTA (5MB) or Samsung KIES and of course ODIN for the die-hard Samsung fan.
Go to the firmware page if you want to use ODIN.
Details about the firmware: I9300XXBLG8
Release date Samsung KIES: 2012-07-26
MODEM/ PHONE I9300XXLG8