Here is a simplified code that prints the name of Directory if it contains a Filename with same name as the parent directory and .md extension.

FIND(){
    find . -type d -exec sh -c '
        for d do
            [ -f "${d}/${d##*/}.md" ] && printf "%s\n" "$d"
        done' find-sh {} +
}


FIND

To generalize I want to send the Search term ${d}/${d##*/}.md as an argument to the FIND function, but unfortunately this does not outputs anything:

FIND(){
    local SearchTerm="${1}"
    find . -type d -exec sh -c '
        for d do
            [ -f "${SearchTerm}" ] && printf "%s\n" "$d"
        done' find-sh {} +
}

FIND '${d}/${d##*/}.md'

I am sure there is some issue with the quotation of the SearchTerm. Any hints?

I tried: FIND '\${d}/\${d##*/}.md' but has no output