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

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