relaunch vs win back

relaunch

verb
  • To launch again. 

noun
  • The act or fact of launching again. 

win back

verb
  • To regain favour (with). 

  • To get (someone) to be one's partner, after having been apart. 

  • To win (something) that one has previously lost. 

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