Complex sentence: Mamo went into the 1998--99 season, hoping to help Tarxien Rainbows gain a quick return to the Maltese Premier League, however the team failed to gain promotion, and remained in the Maltese First Division.
Split into simpler sentences: Mamo went into the 1998--99 season, hoping to help Tarxien Rainbows gain a quick return to the Maltese Premier League. However, the team failed to gain promotion, and remained in the Maltese First Division.