Indeed https://startpage.com/do/search https://www.google.de/#q=pussy+riot "pussy riot" with and without the quotes is filtered by starpage.com, while Google does show hits regarding to the "Russian feminists". IMO they are not really important, serious feminists. Just for fun I tried "moby's dick" ;) and by Google I got http://www.wnd.com/2004/06/25239/ (G-rated, don't worry) and startpage.com only shows Moby Dick.