Perhaps you should try some spelling variations:
"experiencias regionales." » "experiencias personales.", "experiencias nacionales.", "experiencias profesionales."
"experiencia regional." » "experiencia relacional.", "experiencia nacional.", "experiencia personal."
"conferencias magistrales." » "conferencias magistral.", "conferencias magistrados."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("experiencias regionales.") OR ("experiencia regional."))) or ("conferencias magistrales."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("experiencias regionales.") OR ("experiencia regional."))) OR ("conferencias magistrales.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"experiencias regionales.\") OR (\"experiencia regional.\"))) or (\"conferencias magistrales.\"))".
• Removing quotes may allow a broader search: (((( experiencias regionales. ) OR ( experiencia regional. ))) or ( conferencias magistrales. )).
• Adding a wildcard symbol may retrieve word variants: (((("experiencias regionales.") OR ("experiencia regional."))) or ("conferencias magistrales."))*.