contention vs jockeying

contention

noun
  • Argument, contest, debate, strife, struggle. 

  • Competition by parts of a system or its users for a limited resource. 

  • A point maintained in an argument, or a line of argument taken in its support; the subject matter of discussion of strife; a position taken or contended for. 

jockeying

noun
  • The act of one who jockeys. 

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