Arab News: After exiting China eight years ago due to censorship and hacking, Google is tuning a mobile search app that would filter blacklisted search results in order to re-enter the market, according to US media reports. The California-based Internet giant has engineers designing search software that would leave out content blacklisted by the Chinese government, according to a New York Times report citing two unnamed people familiar with the effort.News website The Intercept first reported the story, saying the Chinese search app was being tailored for Google-backed Android operating system for mobile devices.The service was said to have been shown to Chinese officials. Google did not respond to a request for comment. There was no guarantee the project would result in Google search returning to China. US Internet titans have long struggled with doing business in China, home of a “Great Firewall” that blocks content as seen fit by officials.