Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified total optimization algorithms" » "modified total optimisation algorithm", "modified total estimation algorithms", "modified total optimized algorithms", "modified global optimization algorithms", "modified static optimization algorithms", "modified qoe optimization algorithms", "modified thermal optimization algorithms", "modified ti6al4v optimization 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 multiobjective estimation algorithm") OR ("modified total optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified multiobjective estimation algorithm ) or ( modified total optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective estimation algorithm") or ("modified total optimization algorithms"))*.