i don't give up easy

it's not Cross fault!!!
maybe there is another solution, but...
when i open my external disk in Mac, i can se all the files... going to target folder, where is songs, all are there. So far so good.
but when i type on search even random letter, let say "a", witch is pretty common letter, Mac can't see anything, no files (it can see files on MAC, but not in that folder where i am and just saw files)
now i'm getting somewhere... can someone help me with that?
why all files are suddenly gone? and i guess thats why Cross can't relocate files...