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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified static optimization algorithm\") OR (\"modified changing optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( modified static optimization algorithm ) OR ( modified changing optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified static optimization algorithm") OR ("modified changing optimization algorithms"))*.