Complex sentence: Ban-Phoung was trained by his father and learned martial arts from him and his uncle and when his father died, Ban-Phoung went to South Korea and fall in love with the Vietnamese girl Hae-yi.
Split into simpler sentences: Ban-Phoung was trained by his father and learned martial arts from him and his uncle. When his father died, Ban-Phoung travelled to South Korea and fell in love with the Vietnamese girl Hae-yi.