Exploration and research on the local bureaucratic system of the Song dynasty Collection and researches on"the preface to the orchid pavilion"in the song dynasty Research on the reward system of the Qing Dynasty Textual research on the opera of the Qing dynasty 并列题名：Research on the reward system of the Qing Dynasty 并列题名：Collection and researches on"the preface to the orchid pavilion"in the song dynasty Collation and research on Accounting Records of Wanli in the Ming Dynasty Collection of research on the history of Song dynasty 并列题名：Textual research on the opera of the Qing dynasty