Perhaps you should try some spelling variations:
"instituto pedagogico nacional" » "instituto oncologico nacional", "instituto pedagogica nacional", "instituto pedagogico tradicional", "instituto pedagogicos tradicional"
"instituto pedagogico social" » "instituto oncologico social", "instituto pedagogia social"
"instituto colegio nacional" » "instituto oncologico nacional", "instituto copesal nacional", "antiguo colegio nacional", "instituto coleccion nacional"

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: (("instituto colegio nacional") or ((("instituto pedagogico nacional") OR ("instituto pedagogico social"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("instituto colegio nacional") OR ((("instituto pedagogico nacional") OR ("instituto pedagogico social")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"instituto colegio nacional\") or (((\"instituto pedagogico nacional\") OR (\"instituto pedagogico social\"))))".
• Removing quotes may allow a broader search: (( instituto colegio nacional ) or ((( instituto pedagogico nacional ) OR ( instituto pedagogico social )))).
• Adding a wildcard symbol may retrieve word variants: (("instituto colegio nacional") or ((("instituto pedagogico nacional") OR ("instituto pedagogico social"))))*.