Perhaps you should try some spelling variations:
"modified parameter estimation algorithmss" » "modified parameter estimation algorithms", "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimates algorithmss", "modified parameter optimization algorithmss"
"modified objective evolution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective solution algorithm", "modified objective convolution 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: (("modified parameter estimation algorithmss") OR ("modified objective evolution algorithm"))~.
• Removing quotes may allow a broader search: (( modified parameter estimation algorithmss ) or ( modified objective evolution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameter estimation algorithmss") or ("modified objective evolution algorithm"))*.