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