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