Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"enabling learning convolution algorithm" » "enabling learning convolution algorithms", "enabling learning evolution algorithm", "enabling learning solution algorithm", "mapping learning convolution algorithm"

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: (("enabling learning convolution algorithm") OR ("modified multiobjective estimation algorithm"))~.
• Removing quotes may allow a broader search: (( enabling learning convolution algorithm ) or ( modified multiobjective estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("enabling learning convolution algorithm") or ("modified multiobjective estimation algorithm"))*.