Perhaps you should try some spelling variations:
"index factor" » "index vector", "index vectors", "index faces", "indsex factorr", "indix factorr", "indx factorr"
"ex facto" » "sex factor", "ix factor", "x factor"
"de facto" » "de factor", "de fact", "d5 facto", "de faito", "e facto", "de falcoo"
"e facto" » "e factor", "e fact", "5 facto"
"de fact" » "de fait", "e fact", "de falco"

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 facto") OR ((("index factor") OR ("ex facto"))))) OR ("e facto"))) OR ("de fact")).
• Removing quotes may allow a broader search: (((((( de facto ) or ((( index factor ) or ( ex facto ))))) or ( e facto ))) or ( de fact )).
• Adding a wildcard symbol may retrieve word variants: (((((("de facto") or ((("index factor") or ("ex facto"))))) or ("e facto"))) or ("de fact"))*.