Perhaps you should try some spelling variations:
parameters optimisation » parameter optimization, parameter estimation
convolution algorithms » evolution algorithm, solution algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
when learning » deep learning, how learning, shot learning

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( when learning convolution algorithms ) OR ( modified parameters optimisation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( when learning convolution algorithms ) OR ( modified parameters optimisation algorithm ))*.