Perhaps you should try some spelling variations:
"modified passive quantization algorithm" » "modified passive estimation algorithm", "modified adaptive quantization algorithm"
"designed network optimisation algorithm" » "designed network optimization algorithms", "designed network estimation algorithm", "designed network estimation algorithms", "designed network optimization algorithm", "defined network optimisation 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 optimisation algorithm") OR ("modified passive quantization algorithm"))~.
• Removing quotes may allow a broader search: (( designed network optimisation algorithm ) or ( modified passive quantization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("designed network optimisation algorithm") or ("modified passive quantization algorithm"))*.