We don't have synonyms for polylogy yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are polylog, posology and pomology.
(n) :
(rare) A set of two or more works of art that are connected, and that can be seen either as a single work or as individual works. They are commonly found in literature, film, or video games.
(n) :
(rare) A set of two or more works of art that are connected, and that can be seen either as a single work or as individual works. They are commonly found in literature, film, or video games.