Perhaps you should try some spelling variations:
"activa al congreso." » "activa el congreso." (Expand Search), "activa a congreso." (Expand Search), "activa ad congreso." (Expand Search), "activar el congreso." (Expand Search)
"activa de congreso." » "activa el congreso." (Expand Search), "activa i congreso." (Expand Search), "activa ii congreso." (Expand Search), "activas de congreso." (Expand Search), "activa en congreso." (Expand Search), "activa y congreso." (Expand Search)
"activa del congreso." » "activo del congreso." (Expand Search), "activas de congreso." (Expand Search), "activa en congreso." (Expand Search), "activas del congreso." (Expand Search), "activa enl congreso." (Expand Search), "activa yl congreso." (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: (((("activa de congreso.") OR ("activa del congreso."))) OR ("activa al congreso."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"activa de congreso.\") OR (\"activa del congreso.\"))) OR (\"activa al congreso.\"))".
• Removing quotes may allow a broader search: (((( activa de congreso. ) OR ( activa del congreso. ))) OR ( activa al congreso. )).
• Adding a wildcard symbol may retrieve word variants: (((("activa de congreso.") OR ("activa del congreso."))) OR ("activa al congreso."))*.