Perhaps you should try some spelling variations:
"binary _ structure optimization algorithm" » "binary _ structural optimization algorithm" (Expand Search)
"binary wave design optimization algorithm" » "binary have design optimization algorithm" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("binary _ structure optimization algorithm") OR ("binary wave design optimization algorithm"))~.
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• Removing quotes may allow a broader search: (( binary _ structure optimization algorithm ) OR ( binary wave design optimization algorithm ))*.