Perhaps you should try some spelling variations:
"de factoor" » "de facteur", "de factor", "de factsor"
"de falcoo" » "die falcon", "de facon", "de alcool"
"de factor" » "e factor", "dose factor", "mode factor", "de factr", "de factsr"
"de factsr" » "de facteur", "de faits"
"de facto" » "de fact", "de facts"

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 falcoo") OR ("de facto"))) OR ("de falco"))) OR ((((("de factor") OR ("de factsr"))) OR ("de factoor")))).
• Removing quotes may allow a broader search: (((((( de falcoo ) or ( de facto ))) or ( de falco ))) or ((((( de factor ) or ( de factsr ))) or ( de factoor )))).
• Adding a wildcard symbol may retrieve word variants: (((((("de falcoo") or ("de facto"))) or ("de falco"))) or ((((("de factor") or ("de factsr"))) or ("de factoor"))))*.