Google Developers Group
Almost all Android users and especially developers are delirious because of Google’s last changes (July 1). The work of search engine in the Android application marketplace is really weird. It seems like many previously very popular applications have vanished from our sights, searching even by the apps’ exact names doesn’t get any success. A lot of developers are complaining that downloads number of their apps are decreasing up to 80% since that change.
Google’s Android support forum includes 30-page thread about this problem, which you can find here: Forum
Hope the puzzle will be solved soon!