Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
same optimization » stage optimization, qoe optimization, market optimization
game optimization » stage optimization, qoe optimization, market optimization
don optimization » qoe optimization, _ optimization, _ optimisation

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( don optimization algorithms ) or ( ((same optimization) or (game optimization)) algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( don optimization algorithms ) OR ( ((same optimization) OR (game optimization)) algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( don optimization algorithms ) or ( ((same optimization) or (game optimization)) algorithms ))*.