Perhaps you should try some spelling variations:
functionals function » function function, functions functional, function dysfunction
parser functionals » sparse functional, area functionals, order functionals
parallel string » parallel parking, parallel stream, parallel using
function https » functions https, fiction https
string parser » string pattern, string based

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

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