Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dos_ factor", "dosa factor", "dos3 factor", "dose 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: (((("dose factor") OR ("de facto"))) OR ("e fact")).
• Removing quotes may allow a broader search: (((( dose factor ) or ( de facto ))) or ( e fact )).
• Adding a wildcard symbol may retrieve word variants: (((("dose factor") or ("de facto"))) or ("e fact"))*.