The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "las" appeared
2018-09-17 : Economic developments in the euro area2017-04-03 : Interview with Expansión
2017-02-02 : Maintaining price stability in the euro area
2014-12-19 : Is the ECB doing enough?
2014-12-09 : Current issues in monetary policy