Perhaps you should try some spelling variations:
"modified parameters optimization algorithms" » "modified parameter optimization algorithms", "modified parameter estimation algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithms", "modified parameters estimation algorithm"
"modified charging solution algorithm" » "modified charging evolution algorithm", "modified charging convolution algorithms", "modified charging evolutionary algorithm", "modified caging solution algorithm", "modified carbon solution algorithm", "modified charging station algorithm"

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