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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( sphere optimisation algorithms ) or ( parameters optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( sphere optimisation algorithms ) OR ( parameters optimization algorithms ))*.