Perhaps you should try some spelling variations:
mode factor » model factor, models factor, model factory
de factsr » de facteur
de faits » des faits, de fait, les faits
facto » fact, facts
factor » factr, factsr

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 ((( mode factor ) OR ( ((de factsr) OR (de faits)) )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( de facto ) or ((( mode factor ) or ( ((de factsr) OR (de faits)) ))))".
• Adding a wildcard symbol may retrieve word variants: (( de facto ) or ((( mode factor ) or ( ((de factsr) OR (de faits)) ))))*.