Perhaps you should try some spelling variations:
"los sectores" » "los senores", "los actores", "los autores"
"de sectores" » "de actores"
"mode factor" » "model factor", "models factor", "model factory", "mode factr", "mode factsr"
"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 facto") OR ((((("de sectores") OR ("los sectores"))) OR ("mode factor"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"de facto\") or (((((\"de sectores\") OR (\"los sectores\"))) or (\"mode factor\"))))*".
• Removing quotes may allow a broader search: (( de facto ) or ((((( de sectores ) OR ( los sectores ))) or ( mode factor ))))*.