Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"model using method algorithm" » "model using mom algorithm", "model nursing methods algorithm", "model focusing method algorithm", "model using metal algorithm", "code using method algorithm", "models nursing method algorithm", "powder using method 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 objective optimization algorithms") or ("model using method algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective optimization algorithms") OR ("model using method algorithm"))*.
• Removing quotes may allow a broader search: (( modified objective optimization algorithms ) or ( model using method algorithm ))*.