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