re-examination vs retrial

re-examination

noun
  • A second or subsequent examination. 

  • In United States patent law, a procedure under which an issued patent is returned to the examiner to determine if it remains valid in light of newly discovered prior art. 

  • Subsequent questioning of a witness after cross-examination. 

retrial

noun
  • A second trial, by the original court, if the original trial was found to be improper or unfair 

How often have the words re-examination and retrial occurred in a corpus of books? (source: Google Ngram Viewer )