Complex sentence: As generations passed, some of the Cen clan migrated to Zhejiang, Shandong, Sichuan, and Guangxi, then from there they ventured to Guangdong, Yunnan, Guizhou, and other parts of the world.
Split into simpler sentences: As generations passed, some of the Cen clan migrated to Zhejiang, Shandong, Sichuan, and Guangxi. Later some Cen ventured to Guangdong, Yunnan, Guizhou, and other parts of the world.