Perhaps you should try some spelling variations:
"proceso contralos estadistico datos." » "proceso control estadistico datos.", "proceso control estadistica datos.", "proceso contra estadistico datos.", "proces contreles estadistico datos.", "procesos contables estadistico datos.", "proceso contralos estadisticas datos.", "proceso contralos estadistico factor.", "proceso contralos estadistica casos."
"procesal control statistical methods." » "process control statistical methods.", "social control statistical methods.", "proceso contra statistical methods.", "procesal control statistics methods.", "procesal control 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: (("procesal control statistical methods.") OR ("proceso contralos estadistico datos."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"procesal control statistical methods.\") OR (\"proceso contralos estadistico datos.\"))".
• Removing quotes may allow a broader search: (( procesal control statistical methods. ) OR ( proceso contralos estadistico datos. )).
• Adding a wildcard symbol may retrieve word variants: (("procesal control statistical methods.") OR ("proceso contralos estadistico datos."))*.