Perhaps you should try some spelling variations:
convolution algorithms » evolution algorithm, solution algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
positive convolution » positive solutions
modified positive » modified passive, modified adaptive
qoe optimisation » qoe optimization, _ optimisation, game optimization
modified qoe » modified male, modified _, modified bi1

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified positive convolution algorithms ) or ( modified qoe optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified positive convolution algorithms ) OR ( modified qoe optimisation algorithm ))*.