The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "secular" appeared
2016-06-15 : The challenge of low real interest rates for monetary policy2016-04-13 : International headwinds and the effectiveness of Monetary Policy
2015-11-22 : The ECB Jewish Memorial and the European project
2014-06-19 : Recent challenges to monetary policy in the euro area