Perhaps you should try some spelling variations:
variable » variables
vialle » viallet, valle, viable
eviable » evitable, viable, evitables
vita » vista, via, vida
vital » vistal, vial, vidal
viva » vivas, via, vida
vila » villa, avila, via
vilal » villal, avilal, vial, vidal, vilar

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((variable or (vialle or eviable)) or ((((vita or viva) or vila) or (vital or vilal)) or visto)).~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((variable OR (vialle OR eviable)) OR ((((vita OR viva) OR vila) OR (vital OR vilal)) OR visto))..
• Adding a wildcard symbol may retrieve word variants: ((variable or (vialle or eviable)) or ((((vita or viva) or vila) or (vital or vilal)) or visto)).*.