strip mall vs warehouse club

strip mall

noun
  • A shopping center consisting of a row of stores with separate entrances from the outdoors, typically along a road and/or with a parking lot in front. 

warehouse club

noun
  • A large retail store holding a wide selection of goods for sale at discounted prices to members of the club. 

  • The club itself. 

How often have the words strip mall and warehouse club occurred in a corpus of books? (source: Google Ngram Viewer )