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