Perhaps you should try some spelling variations:
attributes optimization » attribute optimization
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
parameters optimization » parameter optimization, parameter estimation
optimization algorithm » optimisation algorithm, estimation algorithm, estimation algorithms

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: (( attributes optimization algorithms ) OR ( parameters optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( attributes optimization algorithms ) or ( parameters optimization algorithm ))*.