Perhaps you should try some spelling variations:
evolutionary algorithm » evolution algorithm, solution algorithm
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
sales evolutionary » sales evolution
modified staffing » modified caging
modified sales » modified male, modified traces

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

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