Perhaps you should try some spelling variations:
"modified staffing optimisation algorithm" » "modified staffing optimization algorithms", "modified staffing estimation algorithms", "modified staffing optimization algorithm", "modified static optimization algorithm", "modified caging optimisation algorithm"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified staffing optimisation algorithm") OR ("modified objective estimation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified staffing optimisation algorithm\") OR (\"modified objective estimation algorithm\"))".
• Removing quotes may allow a broader search: (( modified staffing optimisation algorithm ) OR ( modified objective estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified staffing optimisation algorithm") OR ("modified objective estimation algorithm"))*.