Perhaps you should try some spelling variations:
"_ optimized algorithms" » "_ optimized algorithm", "_ optimizer algorithms", "_ optimization algorithms"
"dose estimation algorithm" » "pose estimation algorithm", "cover estimations algorithm", "pulses estimation algorithm"
"risk estimation algorithm" » "pose 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: (((("dose estimation algorithm") or ("risk estimation algorithm"))) or ("_ optimized algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dose estimation algorithm") OR ("risk estimation algorithm"))) OR ("_ optimized algorithms")).
• Removing quotes may allow a broader search: (((( dose estimation algorithm ) or ( risk estimation algorithm ))) or ( _ optimized algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("dose estimation algorithm") or ("risk estimation algorithm"))) or ("_ optimized algorithms"))*.