Complex sentence: Al-Ahly did not win the league for 13 years, but the Shield returned to Al Ahly in 1974--1975, with the team scoring 70 goals in 34 games.
Split into simpler sentences: Al-Ahly did not win the league for 13 years. The title returned to Al Ahly in 1974--1975, with the team scoring 70 goals in 34 games.