We can't discuss specifics of downloading - artist name or album name, file name etc
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Because files shared on the network come from other users like you & me, sometimes it can take a while to find what you're looking for. Espacially if it's a lesser known band, new release etc.
It all depends on whether anybody is sharing those files & if so, whether they log on at the same time as you. It's a bit frustrating, but sometimes it's just a matter of patience & persevering with your search.

Search at different times of day - as users in other time zones log on & off, files available on the network change.
Also try varying your search terms - look for artist or album name, rather than song titles.