Perhaps you should try some spelling variations:
"modified static estimation algorithmssss" » "modified static estimation algorithms", "modified static estimation algorithm", "modified static optimization algorithmssss"
"modified parameters optimization algorithms" » "modified parameter optimization algorithms", "modified parameter estimation algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithms", "modified parameters estimation algorithm"

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 static estimation algorithmssss") OR ("modified parameters optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified static estimation algorithmssss ) or ( modified parameters optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified static estimation algorithmssss") or ("modified parameters optimization algorithms"))*.