The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "increasingly" appeared
2018-04-26 : Monetary policy in the euro area: solid expansion with timid price pressure2017-12-29 : Interview with Börsen-Zeitung
2017-02-10 : Behaving responsibly in a low interest rate environment: A central banker's perspective
2017-01-26 : Ructions in the repo market - monetary easing or regulatory squeezing?