Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
optimizer algorithms » optimized algorithms
optimized algorithm » optimized algorithms
same optimization » game optimization, stage optimization, qoe optimization
don » dong, doan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( don ((optimizer algorithms) OR (optimized algorithm)) ) or ( same optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( don ((optimizer algorithms) OR (optimized algorithm)) ) OR ( same optimization algorithms )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( don ((optimizer algorithms) OR (optimized algorithm)) ) or ( same optimization algorithms ))".
• Adding a wildcard symbol may retrieve word variants: (( don ((optimizer algorithms) OR (optimized algorithm)) ) or ( same optimization algorithms ))*.