Perhaps you should try some spelling variations:
"instituto tecnologico nacional" » "instituto tecnico nacional", "instituto pedagogico nacional", "instituto tecnologico nacionales", "instituto geologico nacional"
"instituto geologico regional" » "instituto neurologico regional", "instituto agroecologico regional", "instituto pedagogico regional", "instituto geologia regional", "instituto economico regional"
"instituto colegio nacional" » "instituto copesal nacional", "antiguo colegio nacional", "instituto clinico nacional", "instituto coleccion nacional"
"instituto oncologico nacional" » "instituto ecologico nacional", "instituto oncologia nacional", "instituto deontologico 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 oncologico nacional"))) or ((("instituto tecnologico nacional") or ("instituto geologico regional"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("instituto colegio nacional") OR ("instituto oncologico nacional"))) OR ((("instituto tecnologico nacional") OR ("instituto geologico regional"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"instituto colegio nacional\") OR (\"instituto oncologico nacional\"))) or (((\"instituto tecnologico nacional\") or (\"instituto geologico regional\"))))*".
• Removing quotes may allow a broader search: (((( instituto colegio nacional ) OR ( instituto oncologico nacional ))) or ((( instituto tecnologico nacional ) or ( instituto geologico regional ))))*.