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