Complex sentence: His presidency was not something that the Minjung wanted at first however later, Minjung credited President Park Chung Hee for development and industrialization of the Republic of Korea through export-led growth.
Split into simpler sentences: His presidency was not something that the Minjung wanted at first. However, later, Minjung credited President Park Chung Hee for development and industrialization of the Republic of Korea through export-led growth.