parc fermé vs sports ground

parc fermé

noun
  • A secure car park where competing cars must be left, and where no maintenance, repairs, or enhancements may be performed, for example during rest periods. 

  • A car configuration race condition, where no or severely limited modifications may be made on a racing car, while the race condition is active. 

sports ground

noun
  • a stadium or piece of land used for sport. 

How often have the words parc fermé and sports ground occurred in a corpus of books? (source: Google Ngram Viewer )