Perhaps you should try some spelling variations:
"designed network optimization algorithm" » "designed network optimization algorithms", "designed network optimisation algorithm", "designed network estimation algorithms", "defined network optimization algorithm"
"modified adaptive estimation algorithm" » "modified adaptive ventilation algorithm", "modified quantile estimation algorithm", "modified adaptive quantization algorithm", "modified passive estimation algorithm"

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

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