fall in vs land up

fall in

verb
  • To come to an end; to terminate; to lapse. 

  • To collapse inwards. 

  • To become operative. 

  • Of a soldier, to get into position in a rank. 

land up

verb
  • To end up; to arrive or result, especially if it is not planned. 

How often have the words fall in and land up occurred in a corpus of books? (source: Google Ngram Viewer )