Perhaps you should try some spelling variations:
"propia estudio periodistico methods." » "propia estudio estadistico methods.", "propia discurso periodistico methods.", "propia gestion periodistica methods.", "propia estudio periodismo metodos.", "propio estudios periodistico methods.", "utopia estudio periodistico methods.", "europa estudio periodistico methods."
"proceso contra statistical methods." » "proceso control statistical methods.", "process control statistical methods."

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

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