Perhaps you should try some spelling variations:
"mediante age" » "mediante el", "mediante la", "mediante un", "medianate age", "mediate age", "mediaste age"
"median age" » "mediana age", "media age", "medias age"
"medianteate age" » "medianateate age", "mediateate age", "mediasteate age", "medianamente age"
"medianateate age" » "medianaateate age", "mediaateate age", "mediasateate age", "medianamente age"

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: "((((\"median age\") OR (\"mediante age\"))) OR (((\"medianteate age\") OR (\"medianateate age\"))))~".
• Removing quotes may allow a broader search: (((( median age ) OR ( mediante age ))) OR ((( medianteate age ) OR ( medianateate age ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("median age") OR ("mediante age"))) OR ((("medianteate age") OR ("medianateate age"))))*.