Perhaps you should try some spelling variations:
parameter estimates » parameter estimation
estimates algorithm » estimation algorithm, estimation algorithms
morse algorithm » source algorithm, mom algorithm
based using » based nursing, gases using, based testing
using morse » using force

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

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