Perhaps you should try some spelling variations:
"structural functionalism" » "structural functions", "structure functional", "structured functional", "structure functionism", "structure functionsism"
structural functionality » structure functionality, structural conditionality, structural rationality

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("structural functionalism") OR ("((structural functionality) OR (structural functional))")).
• Removing quotes may allow a broader search: (( structural functionalism ) or ( ((structural functionality) OR (structural functional)) )).
• Adding a wildcard symbol may retrieve word variants: (("structural functionalism") or ("((structural functionality) OR (structural functional))"))*.