Perhaps you should try some spelling variations:
"modified parameter estimation algorithms" » "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimates algorithms"
"modified topology optimized algorithm" » "modified topology optimized algorithms", "modified topology optimizer algorithms", "modified topology optimization 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 topology optimized algorithm") OR ("modified parameter estimation algorithms"))~.
• Removing quotes may allow a broader search: (( modified topology optimized algorithm ) or ( modified parameter estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified topology optimized algorithm") or ("modified parameter estimation algorithms"))*.