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