here and there vs to and fro

here and there

adv

  • From time to time; intermittently, occasionally. 

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

to and fro

adv

  • Back and forth; with a reciprocating motion. 

verb

  • To go back and forth; to alternate. 

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