Perhaps you should try some spelling variations:
"expediciones pedagogicas" » "orientaciones pedagogicas", "implicaciones pedagogicas", "experiencias pedagogicas"
"mediaciones pedagogicas" » "implicaciones pedagogicas", "orientaciones pedagogicas", "innovaciones pedagogicas"
"expedicion pedagogica" » "experiencia pedagogica", "evaluacion pedagogica", "experiencias pedagogicas"
"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 ("expediciones pedagogicas"))) or ("expedicion pedagogica"))) or ("mediacion pedagogica"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("mediaciones pedagogicas") OR ("expediciones pedagogicas"))) OR ("expedicion pedagogica"))) OR ("mediacion pedagogica")).
• Removing quotes may allow a broader search: (((((( mediaciones pedagogicas ) or ( expediciones pedagogicas ))) or ( expedicion pedagogica ))) or ( mediacion pedagogica )).
• Adding a wildcard symbol may retrieve word variants: (((((("mediaciones pedagogicas") or ("expediciones pedagogicas"))) or ("expedicion pedagogica"))) or ("mediacion pedagogica"))*.