Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
optimizer algorithms » optimized algorithms, optimization algorithms
optimized algorithm » optimized algorithms
sphere optimisation » sphere estimation
cover » covers, over

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( cover ((optimized algorithm) OR (optimizer algorithms)) ) OR ( sphere optimisation algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cover ((optimized algorithm) OR (optimizer algorithms)) ) or ( sphere optimisation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( cover ((optimized algorithm) OR (optimizer algorithms)) ) or ( sphere optimisation algorithm ))*.