tramcar vs trundler

tramcar

noun
  • A streetcar. 

  • A rail vehicle for carrying loads in a mine; a tram. 

trundler

noun
  • Shopping cart. 

  • A person who trundles (something or someone). 

  • A bowler who bowls slowly; a mediocre bowler. 

  • A bowler (player throwing the ball). 

  • A foldable shopping bag with a light frame and wheels. 

  • Golf pushcart. 

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