manifold vs too many to be counted

manifold

verb
  • To multiply or reproduce impressions of by a single operation. 

  • To make manifold; multiply. 

adj
  • Many in number, numerous; multiple, multiplied. 

  • Various in kind or quality; diverse. 

  • Complicated. 

  • Exhibited at diverse times or in various ways. 

adv
  • Many times; repeatedly. 

noun
  • A copy made by the manifold writing process. 

  • A pipe fitting or similar device that connects multiple inputs or outputs. 

  • The third stomach of a ruminant animal, an omasum. 

  • A polygon mesh representing the continuous, closed surface of a solid object 

  • A topological space that looks locally like the "ordinary" Euclidean space ℝⁿ and is Hausdorff. 

too many to be counted

How often have the words manifold and too many to be counted occurred in a corpus of books? (source: Google Ngram Viewer )