The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "expand" appeared
2015-06-15 : Hearing at the European Parliament's Economic and Monetary Affairs Committee2015-03-11 : The ECB and its Watchers XVI Conference
2014-11-21 : Monetary policy in the euro area
2013-09-16 : Keynote speech at the conference “Europe and the Euro - A Family Affair”