This is a phase IIa, open-label, multi-center, clinical trial of interfering the binding of MDM2 oncoprotein with the tumor suppressor P53 protein, leads to increased P53 and P21 protein expression and activates P53-mediated apoptosis. The hypothesis is that APG-115 monotherapy and in combination with APG-2575 will shows good safety and efficacy in patients with R/R T-PLL and NHL