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

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 optimized algorithms") or ("modified multiobjective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified robust optimized algorithms") OR ("modified multiobjective optimisation algorithm"))*.
• Removing quotes may allow a broader search: (( modified robust optimized algorithms ) or ( modified multiobjective optimisation algorithm ))*.