1. A computer-implemented method for searching business objects data sources, the method comprising: providing a plurality of computer-readable master tables, each computer-readable master table associated with a respective business objects data source of a plurality of business objects data sources, each business objects data source stores a plurality of data items; receiving a search query including one or more query terms, each query term represents first metadata included in metadata associated with a plurality of business objects data sources identifying, for each query term, one or more business objects data sources that are associated with the first metadata by searching a plurality of computer-searchable index documents, each computer-searchable index document references the metadata; identifying, for each query term, the metadata associated with the identified one or more business objects data sources by searching the plurality of computer-readable master tables, wherein the identified metadata associated with the identified one or more business objects data sources includes the first metadata and additional metadata associated with the identified one or more business objects data sources; searching the identified one or more business objects data sources for data items that satisfy the identified metadata; and providing representations of the data items and identified metadata in response to receiving the search query.