Perhaps you should try some spelling variations:
"modified adaptive ventilation algorithm" » "modified adaptive estimation algorithm", "modified adaptive estimation algorithms", "modified adaptive evolution algorithm", "modified adaptive quantization algorithm", "modified invasive ventilation algorithm", "modified passive ventilation algorithm"
"modified objective optimized algorithm" » "modified objective optimal algorithm", "modified objective optimization algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"

Try widening your search to All Fields.

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

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