Perhaps you should try some spelling variations:
parameters estimation » parameter estimation, parameter estimates, parameter optimization
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
source algorithm » our algorithm, search algorithm
using source » using force, using morse
code » core

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

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