Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified total optimization algorithmss" » "modified total optimization algorithms", "modified total optimisation algorithm", "modified total estimation algorithms", "modified global optimization algorithmss", "modified static optimization algorithmss", "modified qoe optimization algorithmss", "modified thermal optimization algorithmss", "modified ti6al4v optimization algorithmss"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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