Perhaps you should try some spelling variations:
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"
"modified changing evolution algorithm" » "modified changing solution algorithm", "modified changing evolutionary algorithm", "modified changing convolution algorithms", "modified caging evolution algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified changing evolution algorithm") or ("modified notion approximation algorithms"))~.
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