Perhaps you should try some spelling variations:
"modified parameters estimation algorithmss" » "modified parameters estimation algorithms", "modified parameters estimation algorithm", "modified parameters optimization algorithms", "modified parameter estimation algorithmss", "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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective evolution algorithm") or ("modified parameters estimation algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective evolution algorithm") OR ("modified parameters estimation algorithmss")).
• Removing quotes may allow a broader search: (( modified objective evolution algorithm ) or ( modified parameters estimation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective evolution algorithm") or ("modified parameters estimation algorithmss"))*.