Perhaps you should try some spelling variations:
programming references » programming reference, programming's reference, programming experiences
references function » reference function, reference functions, preference function
ruby programming » 2 programming, 2.0 programming, 2000 programming
function https » functions https, fiction https
parallel ruby » parallel rule, parallel robot, parallel array

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: parallel ruby programming references function https~.
• Adding a wildcard symbol may retrieve word variants: parallel ruby programming references function https*.