Perhaps you should try some spelling variations:
"modified write estimation algorithms" » "modified write optimization algorithms", "modified write optimisation algorithm", "modified write approximation algorithms", "modified risk estimation algorithms", "modified pose estimation algorithms"
"modified adaptive estimation algorithm" » "modified adaptive ventilation algorithm", "modified quantile estimation algorithm", "modified adaptive quantization algorithm", "modified passive estimation algorithm"

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 estimation algorithm") or ("modified write estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified adaptive estimation algorithm") OR ("modified write estimation algorithms")).
• Removing quotes may allow a broader search: (( modified adaptive estimation algorithm ) or ( modified write estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified adaptive estimation algorithm") or ("modified write estimation algorithms"))*.