here and there vs isochronous

here and there

adv
  • In, at or to various places; in one place and another. 

  • From time to time; intermittently, occasionally. 

isochronous

adj
  • Happening at regular intervals; isochronal. 

  • Happening at the same time; simultaneous. 

  • of or pertaining to data associated with time-sensitive applications. 

  • Of or pertaining to the use of clocks derived from the same clock reference. 

How often have the words here and there and isochronous occurred in a corpus of books? (source: Google Ngram Viewer )