The webapp provides for each item the link on ECB's website.
Speeches for : Benoit Coure where "returns" appeared
2016-07-01 : Interview with Le Monde2014-09-02 : On the optimal size of the financial sector
2014-07-03 : Price stability as the basis of a sustained recovery
2013-12-12 : Interview with Die Zeit
2013-11-11 : Savers aren’t losing out
2013-10-09 : The economic consequences of low interest rates