Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"model using medical algorithm" » "model using metal algorithm", "code using medical algorithm", "models nursing medical algorithm", "powder using medical algorithm"

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

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