sidewalk cafe vs terracing

sidewalk cafe

noun
  • An outdoor portion of a restaurant, coffeehouse or cafe. 

terracing

noun
  • A terraced structure. 

  • A series of terraces. 

  • A stand with a series of tiers. 

  • The formation of terraces. 

How often have the words sidewalk cafe and terracing occurred in a corpus of books? (source: Google Ngram Viewer )