Perhaps you should try some spelling variations:
"expediciones pedagogicas" » "orientaciones pedagogicas", "implicaciones pedagogicas", "experiencias pedagogicas"
"mediaciones pedagogicas" » "mediacion pedagogica", "implicaciones pedagogicas", "orientaciones pedagogicas"
"expedicion pedagogica" » "mediacion pedagogica", "experiencia pedagogica", "evaluacion pedagogica"
"innovacion pedagogica" » "innovacion tecnologica", "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 ("innovacion pedagogica"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mediaciones pedagogicas") OR ((("expediciones pedagogicas") OR ("expedicion pedagogica"))))) OR ("innovacion pedagogica")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mediaciones pedagogicas\") or (((\"expediciones pedagogicas\") OR (\"expedicion pedagogica\"))))) or (\"innovacion pedagogica\"))".
• Removing quotes may allow a broader search: (((( mediaciones pedagogicas ) or ((( expediciones pedagogicas ) OR ( expedicion pedagogica ))))) or ( innovacion pedagogica )).
• Adding a wildcard symbol may retrieve word variants: (((("mediaciones pedagogicas") or ((("expediciones pedagogicas") OR ("expedicion pedagogica"))))) or ("innovacion pedagogica"))*.