The webapp provides for each item the link on ECB's website.
Speeches for : Isabel Schnabel where "empirical" appeared
2020-12-16 : The importance of trust for the ECB’s monetary policy2020-11-24 : COVID-19 and monetary policy: Reinforcing prevailing challenges
2020-10-12 : Pulling together: fiscal and monetary policies in a low interest rate environment
2020-09-28 : When markets fail – the need for collective action in tackling climate change
2020-08-26 : Going negative: the ECB’s experience