Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
estimation algorithmss » estimation algorithms, estimation algorithm
qoe optimization » game optimization, _ optimization, stage optimization
post estimation » pose estimation, risk estimation, pulses estimation

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( post estimation algorithmss ) or ( qoe optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( post estimation algorithmss ) OR ( qoe optimization algorithms ))*.