Restricting Video search in Learning Catalog to Learners by Keyword

Summary

We have a requirement to restrict the search of self-service videos published via Me > Learning > My Shared Learning to learners based on keywords,

Content

We have a requirement to restrict the search of self-service videos published via Me > Learning > My Shared Learning to learners based on keywords, For example, two types of self-help videos will be created - one starting with ESS that all employees can see and one starting with MSS that only users with Line Manager role can search via Learning Catalog.

Has anyone implemented similar requirement? Any pointers would be helpful. For example, if there is a way to enforce this requirement by modifying ./ creating new Data security policy,