The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "technical" appeared
2017-08-23 : Investment and growth in advanced economies: selected takeaways from the ECB’s Sintra Forum2016-06-21 : Introductory remarks at the fifth ECB conference on accounting, financial reporting and corporate governance for central banks
2016-01-21 : Introductory statement to the press conference (with Q&A)