Perhaps you should try some spelling variations:
"median age" » "mediana age", "media age", "mediante age"
"mediantea age" » "medianatea age", "mediatea age", "mediantetea age", "mediante age", "mediana age"
"medianteaate age" » "medianateaate age", "mediateaate age", "medianteteaate age", "medianteate age", "medianaate age"
"medianateaate age" » "medianaateaate age", "mediaateaate age", "medianteateaate 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 ((("mediantea age") OR ((("medianteaate age") OR ("medianateaate age"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"median age\") OR (((\"mediantea age\") OR (((\"medianteaate age\") OR (\"medianateaate age\"))))))*".
• Removing quotes may allow a broader search: (( median age ) OR ((( mediantea age ) OR ((( medianteaate age ) OR ( medianateaate age ))))))*.