cherry pie vs practicable

cherry pie

noun
  • Heliotropium arborescens. 

  • Any of various willowherbs 

  • A pie baked with a cherry filling. 

practicable

adj
  • Capable of being accomplished; feasible. 

  • Serving a useful function; useful, functional or handy. 

  • Available for use; accessible or employable. 

How often have the words cherry pie and practicable occurred in a corpus of books? (source: Google Ngram Viewer )