immaculate vs not to blame

immaculate

adj
  • absolutely tidy, having no blemish or stain. 

  • (botany) Lacking blotches, spots, or other markings. 

  • containing no mistakes. 

  • morally pure, free from sin. 

not to blame

How often have the words immaculate and not to blame occurred in a corpus of books? (source: Google Ngram Viewer )