Complex sentence: In May 1976, "High Voltage" was released in the United States but, hampered by visa problems and an uninterested Atlantic Records label in the United States, the band returned to Australia to finish their third album.
Split into simpler sentences: In May 1976, "High Voltage" was released in the United States. However, hampered by visa problems and an disinterested Atlantic Records label in the United States, the band returned to Australia to finish their third album.