[Koha] Opac searches

I've got a lot of questions about how searching works, and I'll start here: When I go to http://opac-templates.koha.org/cgi-bin/koha/opac-search.pl and put 'melville' in the 'Author' field, the first search result that comes up is this one: http://opac-templates.koha.org/cgi-bin/koha/opac-detail.pl?bib=50027 ...which doesn't seem to have 'melville' anywhere. Does a search by author from that page do a full-record keyword search? If it's picking up information that's not displayed, then how does one get the 'full' display? -- Owen