Ms. Lee.  Thanks for your work but I suggest you look again.  Here is a long list, with links to the bills and roll call votes.
https://pplswar.wordpress.com/2015/11/11/what-bernie-sanders-got-done-in-washington-a-legislative-inventory/
I spot-checked their list.  Here is the first I checked.  He's on there. 
Increase funding for the Court of Veterans Appeals by $1.4 million and reduce funding for Housing and Urban Development salaries and expenses by $1.4 million. H.Amdt. 1203 to H.R. 3666 Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations Act, 1997
06/26/1996-11:45am 	House 	H.Amdt.1203 On agreeing to the Sanders amendment (A008) Agreed to by recorded vote: 358 - 55 (Roll no. 274).