Perhaps you should try some spelling variations:
"procesos programas statistical methods." » "procesos programas estadisticos methods.", "procesos problems statistical methods.", "procesos geography statistical methods.", "proyectos programas statistical methods.", "procesos formas statistical methods."
"procesos programas artisticos methods." » "procesos programas academicos methods.", "proyectos programas artisticos methods.", "procesos formas artisticos methods."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("procesos programas artisticos methods.") or ("procesos programas statistical methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos programas artisticos methods.") OR ("procesos programas statistical methods.")).
• Removing quotes may allow a broader search: (( procesos programas artisticos methods. ) or ( procesos programas statistical methods. )).
• Adding a wildcard symbol may retrieve word variants: (("procesos programas artisticos methods.") or ("procesos programas statistical methods."))*.