Perhaps you should try some spelling variations:
parameters optimization » parameter optimization, parameter estimation
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
method algorithm » mom algorithm
learning method » learning methods, graining methods, learning emotion
model learning » mobile learning

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