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

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 (structure functional))") OR ("structural functionality")).
• Removing quotes may allow a broader search: (( ((structural functionalism) OR (structure functional)) ) or ( structural functionality )).
• Adding a wildcard symbol may retrieve word variants: (("((structural functionalism) OR (structure functional))") or ("structural functionality"))*.