Perhaps you should try some spelling variations:
"procesos ciencias statistical methods." » "procesos sciences statistical methods.", "procesos science statistical methods.", "procesos ciencias humanisticas methods.", "procesos esenciales statistical methods.", "procesos teorias statistical methods.", "procesos experiencias statistical methods."
"proceso control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "proceso contralos statistical 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 ciencias statistical methods.") or ("proceso control statistical methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos ciencias statistical methods.") OR ("proceso control statistical methods."))*.
• Removing quotes may allow a broader search: (( procesos ciencias statistical methods. ) or ( proceso control statistical methods. ))*.