Perhaps you should try some spelling variations:
postgresql functionals » postgresql functions, postgresql functionality, postgresql relational
functionals function » function function, functions functional, function dysfunction
string postgresql » securing postgresql, installing postgresql
parallel string » parallel parking, parallel stream, parallel using
function https » functions https, fiction https

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 postgresql functionals function https~.
• Adding a wildcard symbol may retrieve word variants: parallel string postgresql functionals function https*.