debug vs fiddle with

debug

verb
  • To remove a hidden electronic surveillance device from (somewhere). 

  • To remove insects from (somewhere), especially lice. 

  • To search for and eliminate malfunctioning elements or errors in something, especially a computer program or machinery. 

noun
  • The action, or a session, of reviewing source code to find and eliminate errors. 

fiddle with

verb
  • To adjust the position, as of an electronic device, in order to provide better reception or signal. 

  • To manipulate an object, especially in a nervous or restless manner. 

  • To manipulate in order to gain something for oneself. 

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