Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dos_ factor", "dosa factor", "dos3 factor"
"de facts" » "de facto", "de faits", "cbe facts", "d_ facts", "da facts", "d3 facts"
"da facts" » "a facts", "oa facts", "sea 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 facts") OR ("da facts"))))) OR ("e fact")).
• Removing quotes may allow a broader search: (((( dose factor ) or ((( de facts ) or ( da facts ))))) or ( e fact )).
• Adding a wildcard symbol may retrieve word variants: (((("dose factor") or ((("de facts") or ("da facts"))))) or ("e fact"))*.