Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("enabling learning solution algorithm") or ("modified multiobjective optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("enabling learning solution algorithm") OR ("modified multiobjective optimization algorithms")).
• Removing quotes may allow a broader search: (( enabling learning solution algorithm ) or ( modified multiobjective optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("enabling learning solution algorithm") or ("modified multiobjective optimization algorithms"))*.