China HowNet duplicate checking portal is not used for duplicate checking of personal papers. HowNet is the home page of duplicate checking of institutional papers in detachment schools. It's the entrance of school institutions, not the entrance of personal papers. It is recommended that you have a website for duplicate checking of personal papers. You can check your copy of the document yourself. Graduation thesis duplicate checking is the same as HowNet. I can check the copy through the school. I also found that the check of China HowNet is the same as that of the school. I hope you can check the copy.