Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"modified minimal solution algorithms" » "modified minimal solution algorithm", "modified minimal evolution algorithm", "modified minimal convolution algorithms", "modified thermal solution algorithms", "modified optimal solution algorithms", "modified nodal solution 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 optimization algorithm") OR ("modified minimal solution algorithms"))~.
• Removing quotes may allow a broader search: (( modified multiobjective optimization algorithm ) or ( modified minimal solution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimization algorithm") or ("modified minimal solution algorithms"))*.