Perhaps you should try some spelling variations:
functionaries function » functionals function, functions function, function dysfunction
program functionaries » program functionality, rural functionaries, islam functionaries
function https » functions https, fiction https
parallel test » parallel text, parallel texts, parallel task
test program » test programs, tvet program, testing program

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

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