The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "introduce" appeared
2017-05-11 : Macroprudential policy in a changing financial system2016-06-15 : The challenge of low real interest rates for monetary policy
2014-12-19 : Where to from here?
2013-08-01 : Introductory statement to the press conference (with Q&A)