It is possible that your resume does not show your strengths and highlights well, especially the achievements or works obtained from past work experience. Highlight the suitability with your job position.
(2) The second possibility is that the job requires one or two years of work experience or computer skills. You didn't behave well. Because the interlacing is like a mountain, the boss will be more inclined to use ready-made excellent employees, which will also reduce the training cost.
(3) The third possibility is that the academic qualifications are not up to standard. Some companies emphasize academic qualifications. There are also some certificates with high gold content.