Perhaps you should try some spelling variations:
"modified load evaluation algorithm" » "modified load evolution algorithm", "modified load estimation algorithm", "modified load solution algorithm", "modified adam evaluation algorithm", "modified near evaluation algorithm"
"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 load evaluation algorithm") or ("modified notion approximation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified load evaluation algorithm") OR ("modified notion approximation algorithms"))*.
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