Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"model learning prediction algorithm" » "model learning predation algorithm", "model learning predators algorithm", "mobile learning prediction algorithm"

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

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