Perhaps you should try some spelling variations:
comestible » combustible, compatible, compressible
combustions » combustion, combustors, combusting
fossilis » fossils, fossili, fossilised
fossilsed » fossilised, fossilisted, fossilized
fossiled » fossile, fossilized, fossilised
fossiles » fossils, fossile, fossil

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (comestible OR combustions) (fossilis OR (fossilsed OR (fossiled OR fossiles )))~.
• Adding a wildcard symbol may retrieve word variants: (comestible or combustions) (fossilis or (fossilsed or (fossiled or fossiles )))*.