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"
"mediantetea age" » "medianatetea age", "mediatetea age", "mediastetea age"
"medianatetea age" » "medianaatetea age", "mediaatetea age", "mediasatetea 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 (((\"mediantetea age\") OR (\"medianatetea age\"))))) OR (\"mediante age\"))~".
• Removing quotes may allow a broader search: (((( median age ) OR ((( mediantetea age ) OR ( medianatetea age ))))) OR ( mediante age ))~.
• Adding a wildcard symbol may retrieve word variants: (((("median age") OR ((("mediantetea age") OR ("medianatetea age"))))) OR ("mediante age"))*.