Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
notion optimization » network optimization, policy optimization, allocation optimization
parameter estimates » parameter estimation
estimates algorithm » estimation algorithm, estimation algorithms

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

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