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