The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "firmly" appeared
2010-11-04 : Introductory statement with Q&A2009-07-13 : The ECB's enhanced credit support
2009-01-13 : The euro@10: achievements and responsibilities
2008-06-03 : Monetary policy in challenging times
2008-03-26 : Hearing at the Economic and Monetary Affairs Committee of the European Parliament