Perhaps you should try some spelling variations:
"modified sphere optimisation algorithm" » "modified sphere optimization algorithms", "modified sphere estimation algorithm", "modified sphere estimation algorithms"
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified sphere optimisation algorithm") OR ("modified notion approximation algorithms"))~.
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