Perhaps you should try some spelling variations:
"median age" » "mediana age", "media age", "mediante age"
"medianaate age" » "medianaaate age", "mediaaate age", "medianteaate age", "mediante age"
"mediantete age" » "medianatete age", "mediatete age", "mediantetete age", "mediante age"
"mediantetete age" » "medianatetete age", "mediatetete age", "mediantetetete age", "mediantete 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 (\"medianaate age\"))) OR (((\"mediantete age\") OR (\"mediantetete age\"))))~".
• Removing quotes may allow a broader search: (((( median age ) OR ( medianaate age ))) OR ((( mediantete age ) OR ( mediantetete age ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("median age") OR ("medianaate age"))) OR ((("mediantete age") OR ("mediantetete age"))))*.