Perhaps you should try some spelling variations:
evolutionary algorithm » evolution algorithm, solution algorithm
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
parameter estimation » parameter estimates, parameter optimization
modified saline » modified caging, modified male, modified passive

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified parameter estimation algorithms ) or ( modified saline evolutionary algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified parameter estimation algorithms ) OR ( modified saline evolutionary algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified parameter estimation algorithms ) or ( modified saline evolutionary algorithm ))*.