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