I'm trying to search for `a*` and `a\*` and `a-star` on the ACM portal but <em>its not finding anything on A* path finding algorithms</em>

If I search for `search strategies` you get as the third hit an article with A* in its title, and other search keys give you yet more articles with A* in their title, but I need a way to SEARCH FOR A* IN THE TITLE!!