I think I may be missing something in the search: trying to get unix.stackexchange.com/questions/85249/… to show up in the search and I searched for title:which* and it is not turning up (needless to say, title:which doesn't work either)
which seems to work only literally; do wildcards work in the title or do they have to be escaped or something?
Maybe they should change the name of this site to gnu/linux.stackexchange.com. I'm sure that would be fun in a web browser. Shall I submit that proposal to meta?