Perhaps you should try some spelling variations:
variable » variables
vitalle » vitale, evitable, vistalle, vitallle, vialle
viale » viable, viaje, viage, vidale, viae
viales » viables, viajes, viages, vidales, viaes
citables » contables, evitables, tables
vita » vista, vital, via
vial » vidal, via
vistas » revistas

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: ((variable OR ((vitalle OR (viale OR viales)) OR citables)) OR ((vita OR vial) OR vistas)).~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((variable or ((vitalle or (viale OR viales)) or citables)) or ((vita or vial) or vistas)).~".
• Adding a wildcard symbol may retrieve word variants: ((variable or ((vitalle or (viale OR viales)) or citables)) or ((vita or vial) or vistas)).*.