I give up trying to find the bug submission page on Twitter. Here goes.
>From Twitter.com, I saw a tweet that had been posted from The Hague (Netherlands). I clicked the "from" link to see the little map and access the link, "Tweets from this place". I clicked "Tweets from this place" and saw other tweets posted from The Hague. I clicked "save this search". Since I already had 10 saved searches, I had to remove one first. In my saved searches now appeared "The Hague, South Holland". The next day, the name of this place (in my saved searches) had mysteriously changed to "'s-Gravenhage, Zuid-Holland". Clicking on the link, there are no tweets from this place. And - perhaps because there were no results - there is no link to remove the saved search.