Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
modified invasive » modified passive
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified invasive solution algorithm ) OR ( modified qoe optimisation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified invasive solution algorithm ) OR ( modified qoe optimisation algorithm ))*.