Perhaps you should try some spelling variations:
"e factor" » "e factors", "one factor", "age factor", "_ factor", "a factor", "3 factor"
"de fait" » "de faits", "le fait", "du fait"
"se fait" » "le fait"
"e fact" » "_ fact", "a fact", "3 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 factor") OR ((((("de fait") OR ("se fait"))) OR ("e fact")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"e factor\") or (((((\"de fait\") OR (\"se fait\"))) or (\"e fact\"))))".
• Removing quotes may allow a broader search: (( e factor ) or ((((( de fait ) OR ( se fait ))) or ( e fact )))).
• Adding a wildcard symbol may retrieve word variants: (("e factor") or ((((("de fait") OR ("se fait"))) or ("e fact"))))*.