Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"machinery using source algorithm" » "machinery using our algorithm", "machinery using search algorithm", "machines using source algorithm", "machinery using force algorithm", "machinery using morse algorithm"

Try widening your search to All Fields.

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