Perhaps you should try some spelling variations:
objective evolution » objective evolutionary, objective allocation
evolution algorithm » evolutionary algorithm, convolution algorithms, estimation algorithm
solution algorithm » convolution algorithms, evolutionary algorithm, estimation algorithm
modified invasive » modified passive

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified invasive solution algorithm ) OR ( modified objective evolution algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified invasive solution algorithm ) OR ( modified objective evolution algorithm ))*.