Keyphrases
- keyword search
- content addressable
- keywords
- search engine
- relational databases
- structured data
- xml documents
- xml databases
- keyword queries
- keyword search over relational databases
- search queries
- proximity search
- keyword search in relational databases
- xml data
- query language
- faceted search
- query keywords
- proxy re encryption
- data sharing
- semistructured databases
- digital libraries
- databases