noun
natural language search; natural sentence search
A computing term for searching using everyday language queries rather than keywords or formal query syntax.
このデータベースは自然文検索に対応している。
This database supports natural language search.
全文検索 is full-text search, which matches keywords against the entire text, while 自然文検索 interprets the meaning of a natural language query.
Compound of 自然文 (natural sentence) and 検索 (search), a straightforward technical term.