Perhaps you should try some spelling variations:
optimization algorithms » estimation algorithms, estimation algorithm, optimized algorithms
optimisation algorithm » estimation algorithm, estimation algorithms
male optimization » game optimization, market optimization, stage optimization
modified invasive » modified passive

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified male optimization algorithms ) OR ( modified invasive optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified male optimization algorithms ) or ( modified invasive optimisation algorithm ))*.