concoction vs pooling

concoction

noun
  • A mixture prepared in such a way. 

  • The preparing of a medicine, food or other substance out of many ingredients. 

  • Something made up, an invention. 

pooling

noun
  • Grouping together of various resources or assets. 

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