Perhaps you should try some spelling variations:
"implicaciones pedagogicas" » "innovaciones pedagogicas", "implicaciones practicas", "expediciones pedagogicas"
"innovacion pedagogica" » "innovacion tecnologica", "investigacion pedagogica"
"mediacion pedagogica" » "investigacion pedagogica"
"orientaciones pedagogicas" » "orientacion pedagogicas"

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

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