Something

SELECT [Item].[item_id], [Item].[picture], [Item].[title], [Item].[description], [Item].[seller_id], [Item].[current_price], [Item].[increment]FROM [Item]INNER JOIN [Keyword]ON [Keyword].[item_id] = [Item].[item_id]WHERE [Keyword].[keyword] LIKE '%' + ? + '%'GROUP BY [Item].[item_id]