Perhaps you should try some spelling variations:
"one fact" » "one act", "one face", "one faith"
"one factor" » "one actor", "one faceor", "one faithor", "one factsr", "one factors"
"de facon" » "de falco", "la facon", "en facon"
"de fait" » "de faits", "le fait", "se fait"
"de facto" » "de facts"

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: (("de facto") OR ((((((("one fact") OR ("one factor"))) OR ("de facon"))) OR ("de fait")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"de facto\") or (((((((\"one fact\") OR (\"one factor\"))) or (\"de facon\"))) or (\"de fait\"))))".
• Removing quotes may allow a broader search: (( de facto ) or ((((((( one fact ) OR ( one factor ))) or ( de facon ))) or ( de fait )))).
• Adding a wildcard symbol may retrieve word variants: (("de facto") or ((((((("one fact") OR ("one factor"))) or ("de facon"))) or ("de fait"))))*.