Complex sentence: While riding his Nimbus, Goku finds Tambourine and they fight, but Goku was exhausted from his fight with Tenshinhan and Tambourine easily defeats him, also destroying the Nimbus cloud.
Split into simpler sentences: While riding his Nimbus, Goku finds Tambourine and they both fight. But Goku was exhausted from his fight with Tenshinhan and Tambourine easily defeats him, destroying the Nimbus cloud.