Perhaps you should try some spelling variations:
variable » variables
vialle » viallet, valle, viable
vitale » vitales, vitae, viale, vidale, vivale
equivalent » equivalente, equivalentes, equivalencia
vita » via, vida, viva
vital » vial, vidal, vival
vila » villa, avila, via
vista » visto

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 vitale) or equivalent)) or (((vita OR vila) or vital) or vista)).~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((variable OR ((vialle OR vitale) OR equivalent)) OR (((vita OR vila) OR vital) OR vista)).*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((variable or ((vialle or vitale) or equivalent)) or (((vita OR vila) or vital) or vista)).*".