Custom-written titles that really describe content. Retailers Keep Building More Stores. You'd never find the data with that typically ambiguous title. Indexing at the table level. Also, the first 15 individual products, brands, companies, or countries in the table are indexed.
Every word is searchable.
Now you can find needles in haystacks. Product code searching -for those times when indexers' minds don't meet. RDS constructs its own tables from the text of abstract sources and graphics if necessary. Compensation for publishers' quirks. You can get it, but because it isn't searchable, you get fewer false drops.