Update (Saturday, December 20, 2014):
We are pleased to report that the issue with our search engine has been resolved, particularly with respect to cardinality and associated features. We are monitoring the system closely. If you experience any other issues with Scopus, please contact the help desk using "Help and Contact" link in Scopus.
Original Post (Friday, December 19, 2014):
Scopus is experiencing an issue with its search engine, particularly with respect to cardinality. This means that in many instances, searches are returning incorrect record counts, citation counts, etc. despite the fact that the records themselves are in the index. Side effects include search results, affiliation and author result, record count is lower than actual. This is also causing issues with wild card searches in the advanced search field, returning inconsistent results in search.
We believe we have identified the root cause and will update when a fix has been identified.