Responses
They're tags listed for search engine purposes. Early on, Finder was known by several different names (You're my Loveprize, Viewfinder, Finder no Hyouteki, etc) so the tags made it easier for people to find the manga on here. Later, it became well-known as The Viewfinder series, and recently changed again to The Finder series, so the excessive tags are kind of obsolete now.
The alternative names are more than my whole ancestors combined.