Perhaps you should try some spelling variations:
"experiencias pedagogicas" » "experiencia pedagogica"
"mediaciones pedagogicas" » "implicaciones pedagogicas", "expediciones pedagogicas", "orientaciones pedagogicas"
"expedicion pedagogica" » "experiencia pedagogica", "evaluacion pedagogica"
"mediacion pedagogica" » "innovacion pedagogica", "investigacion pedagogica"

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: (((("mediaciones pedagogicas") or ("mediacion pedagogica"))) or ((("expedicion pedagogica") or ("experiencias pedagogicas"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mediaciones pedagogicas") OR ("mediacion pedagogica"))) OR ((("expedicion pedagogica") OR ("experiencias pedagogicas")))).
• Removing quotes may allow a broader search: (((( mediaciones pedagogicas ) or ( mediacion pedagogica ))) or ((( expedicion pedagogica ) or ( experiencias pedagogicas )))).
• Adding a wildcard symbol may retrieve word variants: (((("mediaciones pedagogicas") or ("mediacion pedagogica"))) or ((("expedicion pedagogica") or ("experiencias pedagogicas"))))*.