Hmmm. How they have been deleted?

If they were deleted then removed automatically from .recycled directory there is no chance to recover them. This is the worst case.

This is caused by the internal structure of SFS disks - if file is deleted all it's 'administrative' data gets quickly overwritten by other files (YES! SFS changes/moves some 'administrative' data of different files alsmost after every significant file operation).

Anyway I will try to investigate why SFSDoctor did not find any part of these files, if SFSSalv could do that.

BTW: Which version of SFSSalv did you used?