Perhaps you should try some spelling variations:
"cover optimization algorithms" » "cover optimisation algorithm", "cover estimation algorithms", "cover estimation algorithm", "qoe optimization algorithms", "game optimization algorithms"
"_ optimize algorithmss" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimise algorithmss"
"_ optimized algorithm" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimised 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: (((("_ optimized algorithm") or ("_ optimize algorithmss"))) or ("cover optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ optimized algorithm") OR ("_ optimize algorithmss"))) OR ("cover optimization algorithms")).
• Removing quotes may allow a broader search: (((( _ optimized algorithm ) or ( _ optimize algorithmss ))) or ( cover optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("_ optimized algorithm") or ("_ optimize algorithmss"))) or ("cover optimization algorithms"))*.