hard candy vs sweetmeat

hard candy

noun
  • A candy prepared from one or more syrups boiled to a temperature of 160°C (320°F), thereafter becoming stiff and brittle at room temperature. 

sweetmeat

noun
  • A sweet delicacy; a confection. 

  • Sweetheart; darling. 

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