Perhaps you should try some spelling variations:
"dose factor" » "noise factor", "one factor", "mode factor", "dosone factor", "dosage factor", "dosex factor", "dos5 factor", "dose factoryr", "dos_ factor", "dosa factor", "dos3 factor"
"e factors" » "age factors", "like factors", "one factors", "ex factors", "5 factors", "e factoryrs", "_ factors", "a factors", "3 factors"
"e factor" » "one factor", "age factor", "ex factor", "5 factor", "e factoryr", "_ factor", "a factor", "3 factor"
"de facto" » "dex facto", "d5 facto", "de factory", "de faito", "de falcoo", "de facono", "d_ facto", "da facto", "d3 facto"
"e facto" » "ex facto", "5 facto", "e factory", "_ facto", "a facto", "3 facto"
"de fact" » "de fait", "de falco", "de facon", "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: (((((((("e factor") OR ("e factors"))) OR ("dose factor"))) OR ((("de facto") OR ((("e facto") OR ("e fact"))))))) OR ("de fact")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"e factor\") OR (\"e factors\"))) or (\"dose factor\"))) or (((\"de facto\") or (((\"e facto\") or (\"e fact\"))))))) or (\"de fact\"))".
• Removing quotes may allow a broader search: (((((((( e factor ) OR ( e factors ))) or ( dose factor ))) or ((( de facto ) or ((( e facto ) or ( e fact ))))))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((((("e factor") OR ("e factors"))) or ("dose factor"))) or ((("de facto") or ((("e facto") or ("e fact"))))))) or ("de fact"))*.