Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"mapping learning a algorithm" » "machine learning a algorithm", "enabling learning a algorithm", "mapping learning _ algorithm", "mapping learning _ algorithms", "mapping learning adam algorithm"

You may be able to get more results by adjusting your search query.

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