Here's a list of tags related to "recovery":
recovery (493)
data-recovery (464)
password-recovery (63)
hard-drive-recovery (56)
file-recovery (37)
system-recovery (10)
partition-recovery (5, this was just added in the last 30 days)
Where do you see overlap? Which ones should be made synonyms of others? I'd at least vote for merging partition-recovery into hard-drive-recovery.
[file-recovery]
=>[data-recovery]
[hard-drive-recovery]
sounds more like the click of death problem, whereas[partition-recovery]
more like "I deleted my Windows partition when installing Linux"