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