The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "opportunities" appeared
2017-09-22 : Youth unemployment in the euro area2017-01-31 : Welcome address
2016-06-21 : Hearing of the Committee on Economic and Monetary Affairs of the European Parliament
2016-03-11 : Interview with The Guardian
2015-03-18 : Speech at the inauguration of the New ECB Premises
2014-10-15 : Towards the banking union - Opportunities and challenges for statistics