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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((factorization or (optimisation or atomization)) or (utilization OR utilizaron)) of same~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((factorization OR (optimisation OR atomization)) OR (utilization OR utilizaron)) of same.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((factorization or (optimisation or atomization)) or (utilization OR utilizaron)) of same".
• Adding a wildcard symbol may retrieve word variants: ((factorization or (optimisation or atomization)) or (utilization OR utilizaron)) of same*.