Perhaps you should try some spelling variations:
"modified based evaluation algorithm" » "modified based evolution algorithm", "modified based estimation algorithm", "modified based solution algorithm", "modified load evaluation algorithm", "modified based gradation algorithm", "modified large evaluation algorithm", "modified male evaluation algorithm"
"modified time approximation algorithms" » "modified one approximation algorithms", "modified _ approximation algorithms", "modified bi1 approximation algorithms", "modified male approximation algorithms"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified based evaluation algorithm\") OR (\"modified time approximation algorithms\"))~".
• Removing quotes may allow a broader search: (( modified based evaluation algorithm ) OR ( modified time approximation algorithms ))~.
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