Perhaps you should try some spelling variations:
"policy estimation algorithms" » "policy estimation algorithm", "policy optimization algorithms", "policy optimisation algorithm", "pose estimation algorithms", "motion estimation algorithms"
"qoe optimizer algorithms" » "qoe optimized algorithms", "qoe optimization algorithms"
"_ optimized algorithm" » "_ optimized algorithms"

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