Perhaps you should try some spelling variations:
"proces contreles science methodology." » "proces contreles sciences meteorology.", "proces contreles science anthropology.", "proceso contralos science methodology.", "proces contre science methodology.", "procesos contables science methodology."
"procesos control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "procesos contables statistical methods.", "procesos control statistics methods.", "procesos 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: (("procesos control statistical methods.") or ("proces contreles science methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos control statistical methods.") OR ("proces contreles science methodology.")).
• Removing quotes may allow a broader search: (( procesos control statistical methods. ) or ( proces contreles science methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("procesos control statistical methods.") or ("proces contreles science methodology."))*.