Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"model using rbf algorithm" » "model using _ algorithm", "model using mom algorithm", "model using our algorithm", "code using rbf algorithm", "models nursing rbf algorithm", "powder using rbf algorithm", "model using ibm algorithm", "model using raw algorithm"

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

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