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