Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
parameter estimation » parameter estimates, parameter optimization
va algorithm » _ algorithm, adam algorithm, mom algorithm
code sinh » code using, co sinh
sinh va » sinh vat, tinh va, dinh van

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• Performing a fuzzy search may retrieve terms with similar spellings: (( code sinh va algorithm ) or ( modified parameter estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( code sinh va algorithm ) OR ( modified parameter estimation algorithms )).
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