Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
pre algorithm » mppt algorithm, qspr algorithm, _ algorithm
model using » code using, models nursing, powder using
using pre » nursing pre, using one, using ph
parameter » parameters

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

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