Perhaps you should try some spelling variations:
"proceso contralos statistical methods." » "proceso control statistical methods.", "proceso contra statistical methods.", "proces contreles statistical methods.", "procesos contables statistical methods."
"procesos control estadistica methods." » "procesos control estadistico methods.", "procesos control statistical methods.", "procesos economia estadistica methods.", "procesos control estadisticas metodos.", "procesos control estadisticas medicas.", "process control estadistica methods.", "proceso contra estadistica methods.", "procesos contables estadistica methods."

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

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