The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "closer" appeared
2016-04-28 : Interview with Bild2015-02-24 : Unveiling of the new €20 banknote
2013-06-26 : Introductory remarks at the French Assemblée Nationale
2012-04-26 : Welcome remarks at the ECB-EC conference on financial integration and stability