Perhaps you should try some spelling variations:
"expediciones pedagogicas" » "expedicion pedagogica", "orientaciones pedagogicas", "experiencias pedagogicas"
"educaciones pedagogias" » "mediaciones pedagogicas", "implicaciones pedagogicas", "innovaciones pedagogicas"
"innovacion pedagogica" » "innovacion tecnologica", "investigacion pedagogica"
"mediacion pedagogica" » "mediacion tecnologica", "investigacion pedagogica"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("educaciones pedagogias") OR ("expediciones pedagogicas"))) OR ((("mediacion pedagogica") OR ("innovacion pedagogica"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"educaciones pedagogias\") or (\"expediciones pedagogicas\"))) or (((\"mediacion pedagogica\") OR (\"innovacion pedagogica\"))))~".
• Removing quotes may allow a broader search: (((( educaciones pedagogias ) or ( expediciones pedagogicas ))) or ((( mediacion pedagogica ) OR ( innovacion pedagogica ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("educaciones pedagogias") or ("expediciones pedagogicas"))) or ((("mediacion pedagogica") OR ("innovacion pedagogica"))))*.

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