Many organizations, especially the larger ones posting the highly competitive positions students aspire to, use an Applicant Tracking System (ATS).
Recruiters simply do not have the time to read every CV word-for-word and these automated systems of evaluating CVs programs go a long way in saving them time. Fair or not, they are the reality in the job search process and only increasing in use as AI tools grow in sophistication.
Thankfully, such software can be strategized for to increase the chances of your CV making it through this initial filter.