Perhaps you should try some spelling variations:
optimisation » optimizacion, optimezation, utilisation
atomization » atomizacion, atomisation, automatization
factorization » autorizacion
sectorizacion » secularizacion, semaforizacion, autorizacion
optimization » optimizacion
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 (factorization OR sectorizacion))) OR optimization) of same~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((optimisation or (atomization or (factorization OR sectorizacion))) or optimization) of same~".
• Adding a wildcard symbol may retrieve word variants: ((optimisation or (atomization or (factorization OR sectorizacion))) or optimization) of same*.