Perhaps you should try some spelling variations:
optimisation » optimizacion, optimezation, utilisation
atomization » atomizacion, atomisation, automatization
optimization » optimizacion
factorization » autorizacion, sectorizacion
utilization » utilizacion, utilizaron, reutilizacion
same » some

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: ((((optimisation OR atomization) OR optimization) OR factorization) OR utilization) of same~.
• Adding a wildcard symbol may retrieve word variants: ((((optimisation or atomization) or optimization) or factorization) or utilization) of same*.