Perhaps you should try some spelling variations:
"mode factor" » "model factor", "models factor", "model factors", "mod_ factor", "moda factor", "mod3 factor", "mode factsr"
"de facto" » "d_ facto", "da facto", "d3 facto", "de facts"
"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: (((("mode factor") OR ("de facto"))) OR ("e fact")).
• Removing quotes may allow a broader search: (((( mode factor ) or ( de facto ))) or ( e fact )).
• Adding a wildcard symbol may retrieve word variants: (((("mode factor") or ("de facto"))) or ("e fact"))*.