cheelam vs tobacco pipe

cheelam

noun
  • An earthen bowl in which tobacco is kept and smoked through its hollow neck. 

tobacco pipe

noun
  • A small, hand-held device consisting in its simplest form of a bowl and stem; used for inhaling the smoke of burning tobacco. 

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