Perhaps you should try some spelling variations:
"instituto neurologico nacional" » "instituto tecnologico nacional", "instituto pedagogico nacional", "instituto geologico nacional", "instituto tecnologico nacionales"
"instituto astronomico nacional" » "institucional gastronomico nacional", "instituto antonio nacional"
"instituto economico nacional" » "instituto tecnologico nacional", "instituto tecnico nacional", "estimulo economico nacional", "instituto economia nacional", "instituto economico regional", "instituto economico internacional"
"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 neurologico nacional") OR ("instituto astronomico nacional"))) or ("instituto oncologico nacional"))) or ("instituto economico nacional"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("instituto neurologico nacional") OR ("instituto astronomico nacional"))) OR ("instituto oncologico nacional"))) OR ("instituto economico nacional")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"instituto neurologico nacional\") OR (\"instituto astronomico nacional\"))) or (\"instituto oncologico nacional\"))) or (\"instituto economico nacional\"))".
• Removing quotes may allow a broader search: (((((( instituto neurologico nacional ) OR ( instituto astronomico nacional ))) or ( instituto oncologico nacional ))) or ( instituto economico nacional )).
• Adding a wildcard symbol may retrieve word variants: (((((("instituto neurologico nacional") OR ("instituto astronomico nacional"))) or ("instituto oncologico nacional"))) or ("instituto economico nacional"))*.