Perhaps you should try some spelling variations:
"dose estimation algorithms" » "dose estimation algorithm", "dose optimization algorithms", "dose optimisation algorithm", "pose estimation algorithms", "risk estimation algorithms", "cover estimations algorithms"
"qoe optimizer algorithms" » "qoe optimized algorithms", "qoe optimization algorithms"
"qoe optimized algorithm" » "qoe optimized algorithms", "_ optimized 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 algorithms") or ((("qoe optimized algorithm") OR ("qoe optimizer algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("dose estimation algorithms") OR ((("qoe optimized algorithm") OR ("qoe optimizer algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"dose estimation algorithms\") or (((\"qoe optimized algorithm\") OR (\"qoe optimizer algorithms\"))))".
• Removing quotes may allow a broader search: (( dose estimation algorithms ) or ((( qoe optimized algorithm ) OR ( qoe optimizer algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("dose estimation algorithms") or ((("qoe optimized algorithm") OR ("qoe optimizer algorithms"))))*.