There's this big fire in Spain so I turned to twitter to find out more, but apparently you can't search twitter from its homepage. I probably missed something so here's a screenshot http://imgur.com/NdOTF9F
Yeah, has been like this forever. Find a link to a tweet somewhere (or click here: <a href="https://twitter.com/search?q=%23Linux&src=typd" rel="nofollow">https://twitter.com/search?q=%23Linux&src=typd</a>), all specific pages have a searchbox.