Cannot compeletely download the structure that I have searched using the API

Hello, how are you? I’m trying to download the cif files of all the struture composed of only the Li/Na/K/Rb/Cs/Be/Mg/Ca/Sr/Ba/Al-Sb-O by API. The results of doc from is 192,but I only get 45 structure files? Could anyone help me solve this probelm?

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