The selection of disabled athletes is generally the responsibility of the regional disabled persons' Federation. It may be that these two kinds of disabled people are difficult to train, so they are rarely selected.
Moreover, each disabled sports event is divided according to the disability category. For example, the competition between upper limb disability and physical disability, and the competition between deaf and dumb people. Physically, it can't be compared with the deaf.
And if you want to enter these schools, you must choose to dial. Please contact the local disabled persons' Federation.