Complex sentence: Konghanzheng, coined by Chinese football fans, refers to a persistent phenomenon that the Chinese national football team has played about 30 matches against the South Korean team since 1978 but has never been able to beat them.
Split into simpler sentences: Konghanzheng, coined by Chinese football fans, refers to a persistent phenomenon of Chinese national football team being beaten by Korea. The Chinese national football team has played about 30 matches against the South Korean team since 1978 but has never been able to beat them.