Perhaps you should try some spelling variations:
"designed network approximation algorithm" » "designed network approximation algorithms", "defined network approximation algorithm"
"modified adam optimization algorithm" » "modified adam optimization algorithms", "modified adam optimisation algorithm", "modified adam estimation algorithm", "modified game optimization algorithm", "modified stage optimization algorithm", "modified _ optimization algorithm", "modified df optimization algorithm", "modified near 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: "((\"designed network approximation algorithm\") OR (\"modified adam optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( designed network approximation algorithm ) OR ( modified adam optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("designed network approximation algorithm") OR ("modified adam optimization algorithm"))*.