On Fri, Sep 18, 2009 at 11:36 AM, Nobu Funaki <[email protected]> wrote:
> > Hi, > > I'm talking about hashtag. > > I tried to use #A, #B or #C whatever one letter hashtag, sometimes > couldn't find them in search result. But sometimes I could. > > Could you tell me if there is any certain rules? Perhaps it is > involved this rule. I don't know if it's true of Twitter's search, but many search engines treat single-letter words as stop words - they don't index them. Many don't index two-letter words, either, but apparently Twitter is. Having said all that, I will add that many search engines have become less aggressive about stop words as computing resources have become less of a constraint than they used to be. Nick
