The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "migration" appeared
2018-05-11 : Risk-reducing and risk-sharing in our Monetary Union2016-09-13 : Reviving the spirit of De Gasperi: working together for an effective and inclusive Union
2014-01-09 : Introductory statement to the press conference (with Q&A)