Perhaps you should try some spelling variations:
"structural functionalism" » "estructuras functionalism" (Expand Search)
"estructura functionalism" » "estructuras functionalism" (Expand Search)
"estructurado functionalism" » "estructurasdo functionalism" (Expand Search), "estructuras functionalism" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"structural functionalism\") OR (\"estructura functionalism\"))) OR (\"estructurado functionalism\"))~".
• Removing quotes may allow a broader search: (((( structural functionalism ) OR ( estructura functionalism ))) OR ( estructurado functionalism ))~.
• Adding a wildcard symbol may retrieve word variants: (((("structural functionalism") OR ("estructura functionalism"))) OR ("estructurado functionalism"))*.