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