Perhaps you should try some spelling variations:
"instituto astronomico nacional" » "institucional gastronomico nacional", "instituto antonio nacional"
"instituto neurologico nacional" » "instituto tecnologico nacional", "instituto oncologico nacional", "instituto pedagogico nacional", "instituto tecnologico nacionales", "instituto economico nacional"
"instituto geologico nacional" » "instituto tecnologico nacional", "instituto oncologico nacional", "instituto agroecologico nacional", "instituto pedagogico nacional", "instituto economico nacional"
"instituto geologico regional" » "instituto tecnologico regional", "instituto oncologico regional", "instituto agroecologico regional", "instituto geologia regional", "instituto economico regional"
"instituto colegio nacional" » "instituto oncologico nacional", "instituto copesal nacional", "antiguo colegio nacional", "instituto coleccion nacional"

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 geologico nacional") or ("instituto geologico regional"))) or ((("instituto neurologico nacional") OR ("instituto astronomico nacional"))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("instituto colegio nacional") OR ((((("instituto geologico nacional") OR ("instituto geologico regional"))) OR ((("instituto neurologico nacional") OR ("instituto astronomico nacional"))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"instituto colegio nacional\") or (((((\"instituto geologico nacional\") or (\"instituto geologico regional\"))) or (((\"instituto neurologico nacional\") OR (\"instituto astronomico nacional\"))))))*".
• Removing quotes may allow a broader search: (( instituto colegio nacional ) or ((((( instituto geologico nacional ) or ( instituto geologico regional ))) or ((( instituto neurologico nacional ) OR ( instituto astronomico nacional ))))))*.