Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  

No valid ngrams to plot!
Ngrams not found: Murphy's Law is, [Murphy's Law is], Murphy's law is, [Murphy's law is]

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer