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

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