bump in the road vs off the beaten track

bump in the road

noun
  • A very small town. 

  • A setback or obstacle, especially one which is relatively minor. 

off the beaten track

prep
  • In a place or places not commonly visited. 

  • To a place or places not commonly visited. 

How often have the words bump in the road and off the beaten track occurred in a corpus of books? (source: Google Ngram Viewer )