Perhaps you should try some spelling variations:
"modified robust optimization algorithmss" » "modified robust optimization algorithms", "modified robust optimisation algorithm", "modified robust estimation algorithms", "modified robust optimization algorithmsss", "modified robust optimisation algorithmss", "modified robust estimation algorithmss"
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"

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 robust optimization algorithmss") or ("modified objective optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified robust optimization algorithmss") OR ("modified objective optimization algorithm")).
• Removing quotes may allow a broader search: (( modified robust optimization algorithmss ) or ( modified objective optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified robust optimization algorithmss") or ("modified objective optimization algorithm"))*.