Google Scholar Boolean Search on Citing Articles

Formerly, with Google Scholar (first launched in November 2004) (1) you could do a google-like boolean (and, or, not, etc.) word search, which ranked the articles that it retrieved by how highly cited they were. Then, for any individual citing article in that ranked list of citing articles, (2) you could go on to retrieve all the articles citing that individual cited article, again ranked by how highly cited they were. But you could not go on to do a boolean word search within just that set of citing articles; as of July 1 you can.