Perhaps you should try some spelling variations:
"instituto ecologico nacional" » "instituto tecnologico nacional", "instituto neurologico nacional", "instituto agroecologico nacional", "instituto economico nacional", "instituto colegio nacional", "instituto economica nacional"
"instituto geologico nacional" » "instituto tecnologico nacional", "instituto neurologico nacional", "instituto agroecologico nacional", "instituto economico nacional", "instituto geologica regional", "instituto geologico natural"
"instituto geologico regional" » "instituto tecnologico regional", "instituto neurologico regional", "instituto agroecologico regional", "instituto geologia regional", "instituto economico regional"
"instituto pedagogico nacional" » "instituto pedagogica nacional", "instituto pedagogico tradicional", "instituto pedagogicos tradicional"
"instituto oncologico nacional" » "instituto oncologia nacional", "instituto deontologico nacional"

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 geologico nacional") OR ("instituto pedagogico nacional"))) OR ("instituto geologico regional"))) OR ("instituto oncologico nacional"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"instituto ecologico nacional\") or (((((((\"instituto geologico nacional\") OR (\"instituto pedagogico nacional\"))) or (\"instituto geologico regional\"))) or (\"instituto oncologico nacional\"))))~".
• Removing quotes may allow a broader search: (( instituto ecologico nacional ) or ((((((( instituto geologico nacional ) OR ( instituto pedagogico nacional ))) or ( instituto geologico regional ))) or ( instituto oncologico nacional ))))~.
• Adding a wildcard symbol may retrieve word variants: (("instituto ecologico nacional") or ((((((("instituto geologico nacional") OR ("instituto pedagogico nacional"))) or ("instituto geologico regional"))) or ("instituto oncologico nacional"))))*.