Whitman's sampler vs hodgepodge

Whitman's sampler

noun
  • A diverse collection. 

hodgepodge

noun
  • A collection containing a variety of miscellaneous things. 

  • A confused mass of ingredients shaken or mixed together in the same pot. 

verb
  • To move or position in an erratic, disorganised manner. 

How often have the words Whitman's sampler and hodgepodge occurred in a corpus of books? (source: Google Ngram Viewer )