Perhaps you should try some spelling variations:
viable » variable
eviable » evariable, evitable, evitables, inviable
vitalle » vitale, evitable, vistalle, vitallle, vialle
vialle » viallet, valle, viale
vitae » vital, vistae, vitale, viae
revisable » previsible
vita » vista, vital, via
vistal » vista, vistas, nistal

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((viable or (((vitalle or vialle) or vitae) or (eviable OR revisable))) or (vita or vistal)).~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((viable OR (((vitalle OR vialle) OR vitae) OR (eviable OR revisable))) OR (vita OR vistal))..
• The words AND, OR and NOT may confuse the search; try adding quotes: "((viable or (((vitalle or vialle) or vitae) or (eviable OR revisable))) or (vita or vistal)).".
• Adding a wildcard symbol may retrieve word variants: ((viable or (((vitalle or vialle) or vitae) or (eviable OR revisable))) or (vita or vistal)).*.