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"
"medianatea age" » "medianaatea age", "mediaatea age", "mediasatea age"
"medianatetetea age" » "medianaatetetea age", "mediaatetetea age", "mediasatetetea 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 (((((\"medianatea age\") OR (\"mediante age\"))) OR (\"medianatetetea age\"))))~".
• Removing quotes may allow a broader search: (( median age ) OR ((((( medianatea age ) OR ( mediante age ))) OR ( medianatetetea age ))))~.
• Adding a wildcard symbol may retrieve word variants: (("median age") OR ((((("medianatea age") OR ("mediante age"))) OR ("medianatetetea age"))))*.