Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
qoe optimisation » qoe optimization, _ optimisation, game optimization
search algorithm » source algorithm
using search » using egarch, nursing research, using servo
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: (( (code OR core) using search algorithm ) or ( modified qoe optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (code OR core) using search algorithm ) OR ( modified qoe optimisation algorithm ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (code OR core) using search algorithm ) or ( modified qoe optimisation algorithm ))*".