Execute SQL issue - "Where" clause with multiple arguments doesnt work

declare @sql varchar(2000)
set @sql = 'SELECT top 100 [FullUrl],[Nr] FROM tblSites where FullUrl not like ''monitor%'' or FullUrl not like ''test%'' or Title not like ''%root site%'' or Title not like ''Test'' order by DiskUsed Desc'

exec(@sql)

however it seems like the execute sql node is ignoring the where clause. if i only have one argurment like the 'monitor%' it works but multiple, no luck it returns all values. When I run it in SSMS it works as designed.

Is there some nintex-specific syntax I am missing or is this a limitation? if so its a big one. Otherwise what would be the best way to accomplish this?