Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
parameter estimation » parameter estimates, parameter optimization
code algorithm » mom algorithm, our algorithm, source algorithm
code based » model based, coal based, income based
based code » based anode

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: (( code based code algorithm ) OR ( modified parameter estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( code based code algorithm ) or ( modified parameter estimation algorithms ))*.