The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "hard" appeared
2018-05-04 : Past and future of the ECB monetary policy2017-09-25 : Developing models for policy analysis in central banks
2012-06-28 : 2011 BernĂ¡cer Prize Award Ceremony in honour of Lasse Heje Pedersen