The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "four" appeared
2019-09-26 : Macroprudential policy in Europe2014-10-15 : Towards the banking union - Opportunities and challenges for statistics
2013-12-10 : Money and monetary institutions after the crisis
2013-02-15 : G20 priorities under the Russian Presidency