It seems that search function (on the upper right corner of the site) doesn't work for me. I don't get any result even if I enter frequently used phrases like "graph", "tree", "competition". If I get any result it is just one user with the searched phrase. But I'd like to search for blog posts.
Anyway I can search on google, but I'm interested in whether I am the only one who can't use this function of the site, or is it wrong for everybody. In the latter case where should I send feedback to?