I created a procedure to search text in procedures/functions, tables, views, or jobs. The first parameter @search is the search criterion, @target the search target, i.e., procedures, tables, etc. If not specified, search all. @db is to specify the database to search, default to your current database. Here is my query in dynamic SQL.
ALTER PROCEDURE [dbo].[usp_find_objects]
(
    @search VARCHAR(255),
    @target VARCHAR(255) = NULL,
    @db VARCHAR(35) = NULL
)
AS
SET NOCOUNT ON;
DECLARE @TSQL NVARCHAR(MAX), @USEDB NVARCHAR(50)
IF @db <> '' SET @USEDB = 'USE ' + @db
ELSE SET @USEDB = ''
IF @target IS NULL SET @target = ''
SET @TSQL = @USEDB + '
DECLARE @search VARCHAR(128) 
DECLARE @target VARCHAR(128)
SET @search = ''%' + @search + '%''
SET @target = ''' + @target + '''
IF @target LIKE ''%Procedure%'' BEGIN
    SELECT o.name As ''Stored Procedures''
    FROM SYSOBJECTS o 
    INNER JOIN SYSCOMMENTS c ON o.id = c.id
    WHERE c.text LIKE @search
        AND o.xtype IN (''P'',''FN'')
    GROUP BY o.name
    ORDER BY o.name
END
ELSE IF @target LIKE ''%View%'' BEGIN
    SELECT o.name As ''Views''
    FROM SYSOBJECTS o 
    INNER JOIN SYSCOMMENTS c ON o.id = c.id
    WHERE c.text LIKE @search
        AND o.xtype = ''V''
    GROUP BY o.name
    ORDER BY o.name
END
/* Table - search table name only, need to add column name */
ELSE IF @target LIKE ''%Table%'' BEGIN
    SELECT t.name AS ''TableName''
    FROM sys.columns c 
    JOIN sys.tables t ON c.object_id = t.object_id
    WHERE c.name LIKE @search
    ORDER BY TableName
END
ELSE IF @target LIKE ''%Job%'' BEGIN
    SELECT  j.job_id,
        s.srvname,
        j.name,
        js.step_id,
        js.command,
        j.enabled 
    FROM    [msdb].dbo.sysjobs j
    JOIN    [msdb].dbo.sysjobsteps js
        ON  js.job_id = j.job_id 
    JOIN    master.dbo.sysservers s
        ON  s.srvid = j.originating_server_id
    WHERE   js.command LIKE @search
END
ELSE BEGIN 
    SELECT o.name As ''Stored Procedures''
    FROM SYSOBJECTS o 
    INNER JOIN SYSCOMMENTS c ON o.id = c.id
    WHERE c.text LIKE @search
        AND o.xtype IN (''P'',''FN'')
    GROUP BY o.name
    ORDER BY o.name
    SELECT o.name As ''Views''
    FROM SYSOBJECTS o 
    INNER JOIN SYSCOMMENTS c ON o.id = c.id
    WHERE c.text LIKE @search
        AND o.xtype = ''V''
    GROUP BY o.name
    ORDER BY o.name
    SELECT t.name AS ''Tables''
    FROM sys.columns c 
    JOIN sys.tables t ON c.object_id = t.object_id
    WHERE c.name LIKE @search
    ORDER BY Tables
    SELECT  j.name AS ''Jobs''
    FROM    [msdb].dbo.sysjobs j
    JOIN    [msdb].dbo.sysjobsteps js
        ON  js.job_id = j.job_id 
    JOIN    master.dbo.sysservers s
        ON  s.srvid = j.originating_server_id
    WHERE   js.command LIKE @search
END
'
EXECUTE sp_executesql @TSQL
Update:
  If you renamed a procedure, it only updates sysobjects but not syscomments, which keeps the old name and therefore that procedure will not be included in the search result unless you drop and recreate the procedure.