Perhaps you should try some spelling variations:
functionaries function » functionals function, functions function, function dysfunction
program derivation » program termination, program verification, program description
derivation https » education https, animation https, sedation https
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: program derivation https functionaries function https~.
• Adding a wildcard symbol may retrieve word variants: program derivation https functionaries function https*.