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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"((qoe optimisation) OR (qoe optimization)) algorithm\\") or (\\"game optimization algorithm\\"))\"".
• Removing quotes may allow a broader search: (( ((qoe optimisation) OR (qoe optimization)) algorithm ) or ( game optimization algorithm )).