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 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"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("model using rbf algorithm") or ("modified multiobjective optimization algorithm"))~.
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