Search under "All markets". Bank loan news begins on April 15, 2002, distressed debt news begins on March 27, 2003, emerging markets news begins on March 8, 2004, PIPE news begins on Oct. 13, 2004, biotech news begins on June 14, 2005, structured products news begins on Sept. 18, 2005. Convertibles and high yield go back to Sept. 24, 2001.
Try a shorter version of the company name.
Try a different level in the corporate structure. For example, American Airlines instead of AMR.
Note: searches are not case sensitive and always ignore punctuation.