Efallai y dylech gynnig rhai amrywiadau sillafu:
combustiveis » combustibles
combustions » combustion, combustors, combusting
fossilis" » fossils", fossil", vassilis", fossilss", fossiles"
fossilised" » fossilsed", fossiled", vassilised", fossilssed", fossilesed", fossilized"
fossili" » fossil", fossils", fossile"
fossiled" » fossile", fossiles", fossilized"

Efallai y cewch fwy o ganlyniadau drwy addasu'ch ymholiad chwilio.

• Cynnal chwiliad niwlog a allai adalw termau sydd wedi'u sillafu'n debyg: "(combustiveis OR combustions) ((fossilis" OR fossili") OR (fossilised" or fossiled"))~.
• Efallai y bydd y geiriau AND, OR a NOT yn drysu'r chwiliad; ceisiwch ychwanegu ddyfynodau.: "\"(combustiveis OR combustions) ((fossilis\" OR fossili\") OR (fossilised\" or fossiled\"))".
• Gallai tynnu'r dyfynodau ganiatáu chwiliad ehangach: (combustiveis OR combustions) ((fossilis OR fossili ) OR (fossilised or fossiled )).
• Efallai y byddai ychwanegu symbol nod-chwiliwr yn adfer amrywiad geiriau: "(combustiveis OR combustions) ((fossilis" OR fossili") OR (fossilised" or fossiled"))*.