Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
policy optimization » topology optimization
objective solution » objective evolutionary, objective allocation
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified policy optimization algorithms ) OR ( modified objective solution algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified policy optimization algorithms ) OR ( modified objective solution algorithm ))*.