Perhaps you should try some spelling variations:
"mode factor" » "model factor", "models factor", "model factory", "mode factoor", "mode faitor", "mode falcoor", "mod_ factor", "moda factor", "mod3 factor"
"de factoor" » "de facto", "de facteur", "de factooor", "de faitoor", "de falcooor", "d_ factoor", "da factoor", "d3 factoor"
"de faits" » "des faits", "de fait", "les faits"
"de fact" » "de facto", "de fait", "de falco", "d_ fact", "da fact", "d3 fact"
"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: (((((("de factoor") OR ("mode factor"))) OR ("de faits"))) OR ((("de fact") OR ("e fact")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"de factoor\") or (\"mode factor\"))) or (\"de faits\"))) or (((\"de fact\") OR (\"e fact\"))))".
• Removing quotes may allow a broader search: (((((( de factoor ) or ( mode factor ))) or ( de faits ))) or ((( de fact ) OR ( e fact )))).
• Adding a wildcard symbol may retrieve word variants: (((((("de factoor") or ("mode factor"))) or ("de faits"))) or ((("de fact") OR ("e fact"))))*.