crack onto vs fix up

crack onto

verb
  • To flirt with; to approach and speak to (someone), seeking romance, love, sex, etc. 

fix up

verb
  • To set up a date or to introduce people with the intention of a possible romantic or sexual coupling. 

  • To prepare or provide (something). 

  • To repair or refurbish. 

  • To provide (someone) with something; to furnish. 

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