lapa vs piazza

lapa

noun
  • An open structure in South Africa, typically a thatched roof supported by wooden poles. 

  • A metal wind instrument of 19th-century China, resembling the oboe. 

piazza

noun
  • A roofed gallery or arcade (for example around a public square or in front of a building). 

  • A public square, especially in Italian cities. 

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