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