Perhaps you should try some spelling variations:
"procesos interes estocasticas methods." » "procesos sistemas estocasticos methods.", "procesos bases estocasticas methods.", "procesos senales estocasticas methods.", "procesos interes estocasticos metodo.", "procesos interes estadisticas metodos.", "procesos internos estocasticas methods.", "procesos celebres estocasticas methods.", "procesos lineales estocasticas methods."
"process control statistical methods." » "proceso control statistical methods.", "procesal control statistical methods.", "process control statistics methods.", "process 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: (("process control statistical methods.") or ("procesos interes estocasticas methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("process control statistical methods.") OR ("procesos interes estocasticas methods."))*.
• Removing quotes may allow a broader search: (( process control statistical methods. ) or ( procesos interes estocasticas methods. ))*.