Perhaps you should try some spelling variations:
"age factor" » "age factors", "male factor", "one factor"
"e factors" » "age factors", "like factors", "male factors"
"de faito" » "de facto", "de fait", "de faits"
"de fact" » "de facto", "de fait", "e fact"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("e factors") OR ("age factor"))) OR ("de faito"))) OR ("de fact")).
• Removing quotes may allow a broader search: (((((( e factors ) or ( age factor ))) or ( de faito ))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("e factors") or ("age factor"))) or ("de faito"))) or ("de fact"))*.