Retrieve the doctoral thesis you need, download it with HowNet English version and download it into PDF format. The doctoral thesis downloaded from the Chinese version of HowNet is in CAJ format.
Wanfang Database can also find and download dissertations.
ProQuest full-text database of foreign language dissertations is the most comprehensive and high-quality database in China, and it is the only one that can comprehensively query the full-text of foreign language dissertations.
If you don't have access to these databases, please visit the Literary Party Downloader (wxdown.org) for access.