Perhaps you should try some spelling variations:
optimizer algorithms » optimized algorithms, optimization algorithms
optimized algorithm » optimized algorithms
parameter estimates » parameter estimation
estimates algorithm » estimation algorithm, estimation algorithms
cover » covers, over

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: (( cover ((optimizer algorithms) OR (optimized algorithm)) ) OR ( parameter estimates algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cover ((optimizer algorithms) OR (optimized algorithm)) ) or ( parameter estimates algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( cover ((optimizer algorithms) OR (optimized algorithm)) ) or ( parameter estimates algorithm ))*.