Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
bi1 optimisation » _ optimisation, _ optimization, qoe optimization
method algorithm » mom algorithm
using method » nursing methods, focusing method, using metal
modified bi1 » modified _

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: (( (code OR core) using method algorithm ) OR ( modified bi1 optimisation algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (code OR core) using method algorithm ) or ( modified bi1 optimisation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( (code OR core) using method algorithm ) or ( modified bi1 optimisation algorithm ))*.