Perhaps you should try some spelling variations:
parallel programs » parallel programming
function function » function functional, functions functional, function dysfunction
function https » functions https, fiction https
programs rb » programs b, programs re, programs rod
rb function » rab function, kb function, b function

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

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