Perhaps you should try some spelling variations:
"modified network optimisation algorithm" » "modified network optimization algorithms", "modified network estimation algorithm", "modified network estimation algorithms", "modified network optimization algorithm", "certified network optimisation algorithm", "defined network optimisation algorithm", "modified near optimisation algorithm"
"modified positive solution algorithm" » "modified positive evolution algorithm", "modified positive convolution algorithms", "modified positive evolutionary algorithm", "modified passive solution algorithm", "modified adaptive solution algorithm", "modified positive solutions algorithm"

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