Perhaps you should try some spelling variations:
internacional da » internacional para (Expand Search)
instituto de » institutos de (Expand Search)
da pesquisa » de pesquisa (Expand Search), a pesquisa (Expand Search), de pesquisas (Expand Search)
colaboracao » elaboracao (Expand Search)
astronomica- » astronomicas- (Expand Search), astronomia- (Expand Search), astronomico- (Expand Search)
iac » inac (Expand Search)

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 de colaboracao internacional da pesquisa astronomica- (iasc OR iac)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "instituto de colaboracao internacional da pesquisa astronomica- (iasc OR iac)".
• Adding a wildcard symbol may retrieve word variants: instituto de colaboracao internacional da pesquisa astronomica- (iasc OR iac)*.