Why did the nationalist party fail to achieve permanent success in china?

For the great majority of the Chinese people, for whom social reforms were the main concern, the nationalist leaders concentrated on political and international issues, such as relations with the Western powers and Japan, and failed to implement most of the domestic programs they proposed, most especially land reform. Also, China's leaders bickered and plotted but did little. Lastly, Sun gave lip service to the Nationalist Party's need to deal with the peasant problem.