Perhaps you should try some spelling variations:
"cultural reproduction" » "cultural revolution", "culture production", "sexual reproduction"
"cultural production" » "agricultural production"
"natural productions" » "natural products", "natural product", "natural deduction"

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: (("cultural reproduction") OR ((("cultural production") OR ("natural productions")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cultural reproduction\") or (((\"cultural production\") OR (\"natural productions\"))))".
• Removing quotes may allow a broader search: (( cultural reproduction ) or ((( cultural production ) OR ( natural productions )))).
• Adding a wildcard symbol may retrieve word variants: (("cultural reproduction") or ((("cultural production") OR ("natural productions"))))*.