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

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified adaptive solution algorithm\") OR (\"certified network optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( modified adaptive solution algorithm ) OR ( certified network optimization algorithm ))~.
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