Store Procedure Retunrs No Result

I have a store procedure that works fine when tested in SQL Management Studio and Visual Studio but when I actually running the page in a browser, it does not work. There is no result generated. Below is my store procedure.1 ALTER PROCEDURE [dbo].[spSearch]
2 -- Add the parameters for the stored procedure here
3 @schoolID int = NULL,
4 @scholarship varchar(250) = NULL,
5 @major varchar(250) = NULL,
6 @requirement varchar(250) = NULL
7 --@debug bit = 0
8 AS
9 BEGIN
10 -- SET NOCOUNT ON added to prevent extra result sets from
11 -- interfering with SELECT statements.
12 SET NOCOUNT ON;
13
14 -- Insert statements for procedure here
15
16 Declare @SQL as NVarchar(4000);
17 Declare @Params as NVarchar(3000);
18 Set @SQL = N'SELECT * FROM [scholarship] WHERE [sectionID] = @schoolID';
19 Set @Params = N'@schoolID int,@scholarship varchar(250),@major varchar(250),@requirement varchar(250)'
20
21 If @scholarship IS NOT NULL
22 Set @SQL = @SQL + N' AND [scholarship].[schlrName] LIKE + ''%'' + @scholarship + ''%'''
23 If @major IS NOT NULL
24 Set @SQL = @SQL + N' AND [scholarship].[Specification] LIKE + ''%'' + @major + ''%'''
25 If @requirement IS NOT NULL
26 Set @SQL = @SQL + N' AND ([scholarship].[reqr1] LIKE + ''%'' + @requirement + ''%'''
27 If @requirement IS NOT NULL
28 Set @SQL = @SQL + N' OR [scholarship].[reqr2] LIKE + ''%'' + @requirement + ''%'''
29 If @requirement IS NOT NULL
30 Set @SQL = @SQL + N' OR [scholarship].[reqr3] LIKE + ''%'' + @requirement + ''%'''
31 If @requirement IS NOT NULL
32 Set @SQL = @SQL + N' OR [scholarship].[reqr4] LIKE + ''%'' + @requirement + ''%'''
33 If @requirement IS NOT NULL
34 Set @SQL = @SQL + N' OR [scholarship].[reqr5] LIKE + ''%'' + @requirement + ''%'')'
35 --If @debug = 1
36 --PRINT @SQL
37 Exec sp_executesql @SQL, @Params, @schoolID, @scholarship, @major, @requirement
38 END
39