Perhaps you should try some spelling variations:
"instituto tecnologico nacional" » "instituto oncologico nacional", "instituto tecnico nacional", "instituto tecnologico nacionales", "instituto geologico nacional"
"instituto pedagogico nacional" » "instituto oncologico nacional", "instituto pedagogica nacional", "instituto pedagogico tradicional", "instituto pedagogico social"
"instituto ecologico nacional" » "instituto oncologico nacional", "instituto neurologico nacional", "instituto agroecologico nacional", "instituto economico nacional", "instituto geologico nacional"
"instituto geologico regional" » "instituto neurologico regional", "instituto oncologico regional", "instituto agroecologico regional", "instituto geologia regional", "instituto economico regional"

You may be able to get more results by adjusting your search query.

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