advanced filter help

Hi everyone

Ok so I've been trying to get this advanced filter to look like the following for the last two hours but everything i try just doesnt come out the way its supposed to look,ive used excel help

its supposed to show surname and subject

or

math mark is less than 40

ive attached the spreadsheet,before i filtered and the second sheet is what its supposed to look like after the filter is set.


anyones help would be very much appreciated.