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"
"medianateatea age" » "medianaateatea age", "mediaateatea age", "mediasateatea age", "medianamente age"
"mediatea age" » "mediated age", "mediate age", "mediata 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 ("mediante age"))) OR ((("mediatea age") OR ("medianateatea age"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"median age\") OR (\"mediante age\"))) OR (((\"mediatea age\") OR (\"medianateatea age\"))))".
• Removing quotes may allow a broader search: (((( median age ) OR ( mediante age ))) OR ((( mediatea age ) OR ( medianateatea age )))).
• Adding a wildcard symbol may retrieve word variants: (((("median age") OR ("mediante age"))) OR ((("mediatea age") OR ("medianateatea age"))))*.