Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithms, estimation algorithm, optimization algorithms
parameter estimation » parameter estimates, parameter optimization
optimized algorithm » optimized algorithms, optimizer algorithms
modified quantile » modified adaptive

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified quantile optimized algorithm ) OR ( modified parameter estimation algorithmss ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified quantile optimized algorithm ) OR ( modified parameter estimation algorithmss ))".
• Adding a wildcard symbol may retrieve word variants: (( modified quantile optimized algorithm ) OR ( modified parameter estimation algorithmss ))*.