Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
simulation algorithms » estimation algorithms, estimation algorithm, solution algorithm
policy optimization » topology optimization
policy simulation » device simulation, plant simulation

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( policy optimization algorithms ) or ( policy simulation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( policy optimization algorithms ) OR ( policy simulation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( policy optimization algorithms ) or ( policy simulation algorithms ))*.