Perhaps you should try some spelling variations:
structure functionalization » structural functionalization, selective functionalization, structure functionality
structural functionalized » structural functionality, structural functional, structural functionalization
"structural functionalism" » "structural functional", "structural functions", "structure functionality"

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