Perhaps you should try some spelling variations:
optimisation » optimization, optimizacion, optimezation
utilization » utilizacion, reutilizacion, civilization
utilizaron » utilizacion, utilizado, utilizar
atomization » atomizacion, atomisation, automatization
factorization » autorizacion, sectorizacion
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: ((optimisation or (utilization OR utilizaron)) or (atomization or factorization)) of same~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((optimisation OR (utilization OR utilizaron)) OR (atomization OR factorization)) of same.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((optimisation or (utilization OR utilizaron)) or (atomization or factorization)) of same".
• Adding a wildcard symbol may retrieve word variants: ((optimisation or (utilization OR utilizaron)) or (atomization or factorization)) of same*.