Although several students' papers were not published in their own "New Discoveries in Mathematics and Physics," getting published in a first-tier Hua Academy of Sciences journal is actually already quite impressive. There's no choice; Qiao Ze's requirements for "New Discoveries in Mathematics and Physics" are indeed a bit high; the paper must bring something new.
Whether it's a new mathematical tool or a new theorem, algorithm, and model based on others' tools, the requirements for doctoral students are indeed a bit high. After all, Qiao's Algebraic Geometry is already very difficult, and at the Xilin Mathematical Research Institute, the majority of professors' daily work focuses on research into Qiao's Algebraic Geometry, making it indeed challenging to stand out.