Sql Stored Procedure Fetching Problem

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SQL-Server

SQL-Server-2008

Hello Dear Friends I have created a stored procedure that is working well when i use = operator instead of like keyword. If i use like keyword in Sql server it isworking but in asp.net +C# pages it is not working but if i use = operator in my procedure it will works good with Asp.net page i am not getting problem.

Select J.JobID From dbo.Jobs J Where J.Keywords Like @Keyword + '%' AND
     J.MinExp >= @Exp AND J.Location = @Location AND J.FunctionalArea = @FunctionalArea
     AND J.Industry = @Industry AND J.PostedDate BETWEEN (GETDATE() - @Freshness) AND (GETDATE())
     ORDER BY J.PostedDate DESC

Please tell me if there is any problem everything is working well when i use = operator instead of Like keyword but i need Like keyword please help me.