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"
"medianaatetetea age" » "medianaaatetetea age", "mediaaatetetea age", "mediasaatetetea age"
"mediatea age" » "mediated age", "mediate age", "mediata 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 (\"mediatea age\"))) OR (\"medianaatetetea age\"))))~".
• Removing quotes may allow a broader search: (( median age ) OR ((((( mediante age ) OR ( mediatea age ))) OR ( medianaatetetea age ))))~.
• Adding a wildcard symbol may retrieve word variants: (("median age") OR ((((("mediante age") OR ("mediatea age"))) OR ("medianaatetetea age"))))*.