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

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