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