Perhaps you should try some spelling variations:
"proceso control statistics methods." » "proceso control statistical methods.", "proceso control estadistico methods.", "proceso control estadistica methods.", "proceso control statistics methodology.", "process control statistics methods.", "proceso contra statistics methods.", "proceso contralos statistics methods."
"procesos sciences statistical methods." » "procesos ciencias statistical methods.", "procesos sociales statistical methods.", "procesos civiles statistical methods.", "procesos sciences estadisticas methods."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("procesos sciences statistical methods.") or ("proceso control statistics methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos sciences statistical methods.") OR ("proceso control statistics methods.")).
• Removing quotes may allow a broader search: (( procesos sciences statistical methods. ) or ( proceso control statistics methods. )).
• Adding a wildcard symbol may retrieve word variants: (("procesos sciences statistical methods.") or ("proceso control statistics methods."))*.