Twitter has seen its shares hammered after reporting quarterly results that largely met expectations but failed to allay concerns about sluggish growth ...http://vietnamnews.feedsportal.com/c/35237/f/655031/s/3fe4d862/sc/2/l/0Lvietnamnews0Bvn0Cmiscellany0C2620A120Ctwitter0Ehammered0Eon0Egrowth0Efears0Bhtml/story01.htm