Study of Chidamide, Decitabine and Immune Checkpoint Inhibitors in R/R NHL and Advanced Solid Tumors

Inclusion Criteria: 1. 16 to 80 years of age. 2. ECOG performance of less than 3. 3. Life expectancy of at least 3 months. 4. Histopathological confirmed Non-Hodgkin Lymphoma and solid tumors. 5. Patients are relapsed/refractory Non-Hodgkin Lymphoma with ineligible for autologous hematopoietic stem cell transplantation. 6. The guidelines（ASCO/CSCO）recommend patients to participate in clinical trials. 7. Subjects must have at least one measureable target lesion. 8. Willingness to provide written informed consent for the study. Exclusion Criteria: 1. Active, known or suspected autoimmune diseases. 2. Subjects are being treated with either corticosteroids (\>10 mg daily prednisone equivalent) or other immunosuppressive medications within 14 days of enrollment. 3. History of severe hypersensitive reactions to other monoclonal antibodies. 4. History of allergy or intolerance to study drug components. 5. Substance abuse, medical, psychological or social conditions that may interfere with the patient's participation in the study or evaluation of the study results. 6. History or concurrent condition of interstitial lung disease of any grade or severely impaired pulmonary function. 7. Uncontrolled intercurrent illness, including ongoing or active systemic infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia (excluding insignificant sinus bradycardia and sinus tachycardia) or psychiatric illness/social situations and any other illness that would limit compliance with study requirements and jeopardize the safety of the patient. 8. History of human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS). 9. Pregnant or breast-feeding. Women of childbearing potential must have a pregnancy test performed within 7 days before the enrollment, and a negative result must be documented. 10. Vaccination within 30 days of study enrollment. 11. Active bleeding or known hemorrhagic tendency.