Perhaps you should try some spelling variations:
parameter estimates » parameter estimation
estimates algorithm » estimation algorithm, estimation algorithms
pre algorithm » mppt algorithm, qspr algorithm, _ algorithm
layer using » layer being, paper using, cancer using
using pre » nursing pre, using one, using ph

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

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