Complex sentence: Bosnia finished fourth in a group including Greece, Denmark, Croatia and Slovenia, and further disappointment continued following "mediocre" campaigns in the UEFA Euro 2000 qualifiers, as well as the 2002 FIFA World Cup.
Split into simpler sentences: Bosnia finished fourth in a group that included Greece, Denmark, Croatia and Slovenia. This was then subsequently followed by further disappointment with lackluster campaigns in the UEFA Euro 2000 qualifiers, as well as the 2002 FIFA World Cup.