The webapp provides for each item the link on ECB's website.
Speeches for : Luis de Guindos where "groups" appeared
2022-10-14 : Interview with Verslo žinios2022-09-16 : Interview with Expresso
2020-04-03 : The ECB’s commercial paper purchases: A targeted response to the economic disturbances caused by COVID-19
2019-08-27 : Communication, expectations and monetary policy