syllabus vs yellow pages

syllabus

noun
  • The headnote of a reported case; the brief statement of the points of law determined prefixed to a reported case. 

  • A summary of topics which will be covered during an academic course, or a text or lecture. 

yellow pages

noun
  • A telephone directory that lists commercial organizations, organized by type of organization. 

How often have the words syllabus and yellow pages occurred in a corpus of books? (source: Google Ngram Viewer )