Perhaps you should try some spelling variations:
"risk optimizer algorithms" » "risk optimized algorithms", "risk optimization algorithms"
"risk optimized algorithm" » "risk optimized algorithms", "write optimized algorithm"
"qoe estimation algorithm" » "pose estimation algorithm", "_ estimation algorithm", "cover estimations algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("qoe estimation algorithm") OR ((("risk optimizer algorithms") OR ("risk optimized algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe estimation algorithm\") OR (((\"risk optimizer algorithms\") OR (\"risk optimized algorithm\"))))".
• Removing quotes may allow a broader search: (( qoe estimation algorithm ) OR ((( risk optimizer algorithms ) OR ( risk optimized algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("qoe estimation algorithm") OR ((("risk optimizer algorithms") OR ("risk optimized algorithm"))))*.