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

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified caging optimisation algorithms") OR ("modified static optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified caging optimisation algorithms ) or ( modified static optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified caging optimisation algorithms") or ("modified static optimization algorithms"))*.