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