Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, estimation algorithm, estimation algorithms
parameter optimisation » parameter optimization, parameter estimation
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
staffing » starting, standing

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( staffing optimization algorithm ) or ( parameter optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( staffing optimization algorithm ) OR ( parameter optimisation algorithm ))*.