Try this link: http://www.google.com/trends?q=LinkedIn%2C+OpenBC&ctab=0&geo=all&date=all
By the way don't try to compare with Viaduc because it won't tell you anything except that Viaduc is often associated with Millau (Viaduc de Millau) as google trend done with "LinkedIn, OpenBC, Viaduc" gives same result as "LinkedIn, OpenBC, Millau".