Perhaps you should try some spelling variations:
variable » variables
vide » video, wide, vida
vider » videor, wider, vidar, video, lider, videa
viadal » viadel, piadal, vidal, vianal, viudal
viada » vida, viana, viuda
vitae » vistae, viae, vidae
vita » vista, via, vida
vital » vistal, vial, vidal

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: (((vitae OR variable) OR (((vide OR (viadal OR viada)) OR viaje) OR vider)) OR (vita OR vital)).~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((vitae or variable) or (((vide or (viadal OR viada)) or viaje) or vider)) or (vita or vital)).~".
• Adding a wildcard symbol may retrieve word variants: (((vitae or variable) or (((vide or (viadal OR viada)) or viaje) or vider)) or (vita or vital)).*.