Complex sentence: To help develop Chinese mathematics, Yau started by educating students from China, then establishing mathematics research institutes and centers, organizing conferences at all levels, initiating out-reach programs, and raising private funds for these purposes.
Split into simpler sentences: To help develop Chinese mathematics, Yau started by educating students from China. He then began establishing mathematics research institutes and centers, organizing conferences at all levels, initiating out-reach programs, and raising private funds for these purposes.