Perhaps you should try some spelling variations:
"experiencias profesionales." » "sugerencias profesionales.", "competencias profesionales.", "experiencias personales."
"conferencia magistral." » "conferencias magistrales.", "conferencia ministerial.", "conferencia nacional."
"experiencia regional." » "experiencias regionales.", "experiencia relacional.", "experiencia nacional."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("experiencias profesionales.") OR ("experiencia regional."))) OR ("conferencia magistral."))~.
• Removing quotes may allow a broader search: (((( experiencias profesionales. ) or ( experiencia regional. ))) or ( conferencia magistral. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("experiencias profesionales.") or ("experiencia regional."))) or ("conferencia magistral."))*.