Perhaps you should try some spelling variations:
"designed network approximation algorithm" » "designed network approximation algorithms", "defined network approximation algorithm"
"modified static optimization algorithm" » "modified static optimization algorithms", "modified static optimisation algorithm", "modified static estimation algorithm", "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.

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