Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
bi1 optimisation » _ optimisation, _ optimization, qoe optimization
force algorithm » source algorithm, search algorithm
modified bi1 » modified _
using force » using morse, cutting force
core using » code using, care nursing

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: (( core using force algorithm ) OR ( modified bi1 optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( core using force algorithm ) or ( modified bi1 optimisation algorithm ))*.