Perhaps you should try some spelling variations:
"median age" » "mediana age", "media age", "mediante age"
"medianteate age" » "medianateate age", "mediateate age", "medianteteate age"
"medianteateate age" » "medianateateate age", "mediateateate age", "medianteteateate age"
"medianaate age" » "medianaaate age", "mediaaate age", "medianteaate age", "mediante age"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("median age") OR ((((("medianteate age") OR ("medianteateate age"))) OR ("medianaate age"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"median age\") OR (((((\"medianteate age\") OR (\"medianteateate age\"))) OR (\"medianaate age\"))))*".
• Removing quotes may allow a broader search: (( median age ) OR ((((( medianteate age ) OR ( medianteateate age ))) OR ( medianaate age ))))*.