Perhaps you should try some spelling variations:
"e factor" » "e factors", "age factor", "_ factor", "a factor", "3 factor"
"one factor" » "one factors", "onage factor", "on_ factor", "ona factor", "on3 factor"
"de facon" » "de facto", "de falco", "la facon"
"de fact" » "de facto", "de falco", "one fact", "d_ fact", "da fact", "d3 fact"
"de fait" » "de faits", "le fait", "se 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 ("one factor"))) OR ((((((("de fact") OR ("de facon"))) OR ("de fait"))) OR ("e fact")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"e factor\") OR (\"one factor\"))) or (((((((\"de fact\") or (\"de facon\"))) or (\"de fait\"))) or (\"e fact\"))))".
• Removing quotes may allow a broader search: (((( e factor ) OR ( one factor ))) or ((((((( de fact ) or ( de facon ))) or ( de fait ))) or ( e fact )))).
• Adding a wildcard symbol may retrieve word variants: (((("e factor") OR ("one factor"))) or ((((((("de fact") or ("de facon"))) or ("de fait"))) or ("e fact"))))*.