Perhaps you should try some spelling variations:
"instituto astronomico nacional" » "institucional gastronomico nacional", "instituto neurologico nacional", "instituto antonio nacional"
"instituto tecnologico nacional" » "instituto oncologico nacional", "instituto tecnico nacional", "instituto pedagogico nacional", "instituto tecnologico nacionales"
"instituto geologico nacional" » "instituto neurologico nacional", "instituto oncologico nacional", "instituto agroecologico nacional", "instituto pedagogico nacional", "instituto economico nacional"
"instituto geologico regional" » "instituto neurologico regional", "instituto oncologico regional", "instituto agroecologico regional", "instituto economico regional"
"instituto geologia regional" » "instituto genova regional", "instituto neurologico regional", "instituto oncologico regional", "instituto economia regional"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("instituto geologico nacional") or ((((((("instituto geologico regional") or ("instituto geologia regional"))) or ("instituto astronomico nacional"))) or ("instituto tecnologico nacional"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("instituto geologico nacional") OR ((((((("instituto geologico regional") OR ("instituto geologia regional"))) OR ("instituto astronomico nacional"))) OR ("instituto tecnologico nacional")))).
• Removing quotes may allow a broader search: (( instituto geologico nacional ) or ((((((( instituto geologico regional ) or ( instituto geologia regional ))) or ( instituto astronomico nacional ))) or ( instituto tecnologico nacional )))).
• Adding a wildcard symbol may retrieve word variants: (("instituto geologico nacional") or ((((((("instituto geologico regional") or ("instituto geologia regional"))) or ("instituto astronomico nacional"))) or ("instituto tecnologico nacional"))))*.